Technical Information

308A & 308R Sheet Metal Installer Exams

Started by Admin

Replies: 0
Views: 156

February 08, 2023, 08:46:45 PM
by Admin

G2 & G3 Gas Technician Exams

Started by Admin

Replies: 11
Views: 42,798

March 28, 2022, 03:57:54 PM
by Admin

Free Online Training (Beta)

Started by tenletters

Replies: 2
Views: 7,694

October 10, 2021, 08:06:41 AM
by simonkc

313D Residential Air Conditioning Systems Mechanic Exam

Started by Admin

Replies: 31
Views: 93,887

March 13, 2020, 12:40:40 PM
by Leohvac

Free HVAC Exam

Started by Admin

Replies: 3
Views: 13,383

April 08, 2017, 08:41:49 AM
by Porcupinepuffer

Pro Tech Membership

Started by Admin

Replies: 0
Views: 8,170

March 13, 2016, 01:46:33 PM
by Admin

WWW.HVACTECHGROUP.COM

Started by Admin

Replies: 0
Views: 15,146

March 13, 2010, 05:08:14 PM
by Admin

Private Heat Exchanger Gallery

Started by Admin

Replies: 0
Views: 24,606

December 14, 2008, 11:23:00 AM
by Admin

B149.1 Code Infractions

Started by Admin

Replies: 0
Views: 15,019

June 17, 2007, 10:45:31 PM
by Admin

TSSA Contactor Audit Program

Started by Admin

Replies: 1
Views: 2,802

March 15, 2023, 04:30:43 PM
by Admin

AO Smith Technical Bulletin TB-184 - Tightening of loose screws

Started by Admin

Replies: 1
Views: 37

March 10, 2023, 05:39:44 PM
by Porcupinepuffer

ZLINE gas ranges recalled due to risk of Carbon Monoxide Poisoning

Started by Admin

Replies: 0
Views: 61

February 11, 2023, 10:33:17 AM
by Admin

Which meter serves who? I have no idea!

Started by Porcupinepuffer

Replies: 8
Views: 2,629

January 25, 2023, 03:52:53 PM
by hvactech83

Underground piping CSST

Started by samihabib

Replies: 2
Views: 292

January 21, 2023, 10:44:42 AM
by rmuntz

Helical Swirl Vanes in the burner tubes of a Trane gas Pak, circa 2005

Started by CWillC

Replies: 1
Views: 67

January 17, 2023, 04:01:53 PM
by scarey8

Tag after a new appliance installed

Started by deep

Replies: 2
Views: 285

September 10, 2022, 08:39:23 AM
by NoDIY

drip leg length

Started by deep

Replies: 1
Views: 290

July 28, 2022, 05:20:51 AM
by Admin

Venting of appliances

Started by deep

Replies: 2
Views: 250

June 28, 2022, 10:08:31 AM
by samihabib

G3 Challenge

Started by KanataHVACApprentice

Replies: 4
Views: 273

June 14, 2022, 05:27:21 PM
by KanataHVACApprentice

AC wiring and breaker sizing

Started by Admin

Replies: 6
Views: 12,504

April 24, 2022, 09:22:21 PM
by Admin

Heat pump selection

Started by harshal

Replies: 3
Views: 385

March 12, 2022, 09:29:57 AM
by scarey8

Giant and Gemco natural gas and propane water heaters recalled due to potential

Started by Admin

Replies: 0
Views: 408

January 29, 2022, 04:22:53 PM
by Admin

VanEE air exchanger

Started by mooredd

Replies: 0
Views: 440

January 23, 2022, 01:18:02 PM
by mooredd

Goodman Recalls Evaporator Coil Drain Pans due to Fire Hazard

Started by Admin

Replies: 0
Views: 638

November 24, 2021, 04:54:55 PM
by Admin

126-HIGH HEAT CYCLE ACTIVE Carrier 59MN7A060V171214

Started by rminoak

Replies: 2
Views: 6,661

November 16, 2021, 03:24:16 PM
by rminoak

Venting my crawl space

Started by gmacfarlane

Replies: 0
Views: 678

October 30, 2021, 12:07:56 PM
by gmacfarlane

Balancing a vanEE HRV

Started by gmacfarlane

Replies: 6
Views: 925

October 28, 2021, 02:40:42 PM
by gmacfarlane

Lifebreath RNC 200 blinking LED

Started by Big Onions

Replies: 3
Views: 740

October 27, 2021, 05:12:25 PM
by Admin

Using old B-vent pipe as exhaust for Heat Recovery Ventilator

Started by dsquare1

Replies: 2
Views: 864

September 05, 2021, 11:19:20 AM
by dsquare1

the b vent or liner size for Hwt

Started by hmmbm

Replies: 2
Views: 702

September 05, 2021, 09:32:00 AM
by Admin

CO readings in hot water

Started by Admin

Replies: 2
Views: 990

July 22, 2021, 04:15:21 AM
by Admin

Generalaire 3200 & 4200 Humidifiers Product Bulletin

Started by Admin

Replies: 0
Views: 1,103

May 19, 2021, 03:18:02 PM
by Admin

Exterior propane lines

Started by Hgye

Replies: 4
Views: 1,162

May 03, 2021, 09:09:37 PM
by theclick

Fire dampers

Started by JHS

Replies: 1
Views: 868

May 02, 2021, 08:50:21 AM
by Admin

313A air conditioning and refrigeration prep exam

Started by Sam1970

Replies: 2
Views: 1,407

April 30, 2021, 09:49:32 PM
by Pindu

Tubing through flooring

Started by Samjohn

Replies: 4
Views: 1,142

April 24, 2021, 07:35:09 AM
by Samjohn

How to Heat/Cool indoor pool house

Started by samihabib

Replies: 1
Views: 920

April 09, 2021, 02:28:49 PM
by rmuntz

Enbridge Validation Form

Started by Admin

Replies: 8
Views: 2,119

April 07, 2021, 05:53:09 PM
by Attavior

B149.1:20

Started by I’macreative

Replies: 5
Views: 1,530

March 16, 2021, 10:09:29 AM
by Admin

Furnace combustion air

Started by Hgye

Replies: 7
Views: 5,867

February 03, 2021, 06:51:21 AM
by Admin

R-134a

Started by kjthb

Replies: 4
Views: 1,342

January 26, 2021, 11:21:10 AM
by Porcupinepuffer

Fireplace Problem

Started by kjthb

Replies: 3
Views: 1,361

January 22, 2021, 11:15:57 AM
by kjthb

UV Lamps and COVID-19

Started by Admin

Replies: 1
Views: 1,160

January 10, 2021, 06:45:10 AM
by tenletters

GAS Appliance TSSA Registration

Started by kjthb

Replies: 0
Views: 993

January 07, 2021, 12:35:07 PM
by kjthb

Enbridge Contractor Bulletin - Warning Tags

Started by Admin

Replies: 14
Views: 6,564

December 18, 2020, 03:30:59 PM
by Admin

Water leaking from Condesate exhaust pipe outside of furnace??

Started by wantboost

Replies: 10
Views: 1,795

December 10, 2020, 05:02:55 PM
by wantboost

636 Glue Confusion

Started by Admin

Replies: 5
Views: 19,188

December 09, 2020, 12:33:50 PM
by rmuntz

Legal fitting?

Started by howitt

Replies: 12
Views: 10,929

December 03, 2020, 01:13:54 PM
by Admin

Training Resources While You're Off

Started by tenletters

Replies: 4
Views: 1,040

October 07, 2020, 10:35:46 PM
by wantboost

Kingsman and Marquis Skyline II/III Gas Fireplaces recalled due to fire hazard

Started by Admin

Replies: 0
Views: 1,321

October 03, 2020, 07:46:40 AM
by Admin

Lochinvar Condensing Gas Boilers recalled due to risk of carbon monoxide poisoni

Started by Admin

Replies: 0
Views: 1,145

October 03, 2020, 07:39:49 AM
by Admin

Valor H5 series fireplaces recalled due to laceration hazard

Started by Admin

Replies: 0
Views: 1,128

October 03, 2020, 07:32:38 AM
by Admin

Enbridge Bonding Bulletin & ESA Bulletin 10-14-9

Started by Admin

Replies: 2
Views: 1,603

September 23, 2020, 07:54:20 PM
by Admin

Disconnect Box - Working Space

Started by Admin

Replies: 1
Views: 1,819

June 13, 2020, 08:52:17 AM
by Hgye

CSST uses

Started by Samjohn

Replies: 22
Views: 4,678

May 14, 2020, 06:19:25 AM
by Samjohn

Gas Tags

Started by Fabristeel Ltd.

Replies: 1
Views: 1,875

April 21, 2020, 04:00:24 PM
by Admin

B149.1-15 Natural gas and propane installation code & FS-XXX-15 Amendments

Started by Admin

Replies: 16
Views: 31,524

March 05, 2020, 09:53:02 PM
by Admin

Lennox ductless single-zone and multi-zone heat pumps recalled for fire hazard

Started by Admin

Replies: 0
Views: 1,898

March 04, 2020, 10:03:36 AM
by Admin

Hydronic certified?

Started by howitt

Replies: 4
Views: 3,622

December 29, 2019, 09:11:03 AM
by scarey8

Levelling furnaces

Started by DaveP

Replies: 5
Views: 2,960

December 14, 2019, 09:55:41 AM
by Admin

Gas leak detector

Started by harshal

Replies: 2
Views: 2,001

November 28, 2019, 04:59:36 PM
by tenletters

Outdoor Intake - Clearance to Grade

Started by Admin

Replies: 2
Views: 2,009

November 23, 2019, 10:27:13 AM
by Admin

Fix for JCI wall mount thermostat ns-btb7001-0

Started by Old Sparky

Replies: 0
Views: 2,178

September 18, 2019, 07:46:20 AM
by Old Sparky

Viessmann Recall – Vitodens 200-W and 222-F Boiler: Carbon Monoxide Hazard

Started by Admin

Replies: 0
Views: 3,150

June 01, 2019, 11:02:50 AM
by Admin

Enbridge Relief Vent Clearance Bulletin

Started by Admin

Replies: 2
Views: 5,757

May 22, 2019, 04:57:33 PM
by Admin

Is the g3 and g2 practice exam still up to date?

Started by itssabdullah

Replies: 3
Views: 3,560

May 16, 2019, 05:48:13 PM
by chewy

Csst piping right off the meter

Started by Hvacpimp

Replies: 5
Views: 3,710

April 15, 2019, 02:37:09 PM
by NoDIY

A/c run times

Started by bsolc

Replies: 3
Views: 2,749

April 14, 2019, 11:18:01 PM
by Hvacpimp

Ottawa Hydro MCS0106 - New Rules Regarding Hydro Meter Clearances

Started by Admin

Replies: 1
Views: 3,124

April 14, 2019, 11:08:09 PM
by Hvacpimp

Install height

Started by bsolc

Replies: 1
Views: 2,558

April 01, 2019, 03:16:09 PM
by Admin

Quietest Power Vent Water Heater & Tankless mixing valve exemptions

Started by jborge

Replies: 9
Views: 4,827

March 28, 2019, 07:12:27 AM
by Admin

Commercial Heat Exchanger Repair

Started by viking

Replies: 3
Views: 2,677

March 27, 2019, 06:22:19 PM
by viking

2019 Ontario Rebates

Started by Admin

Replies: 1
Views: 2,648

March 21, 2019, 09:10:06 PM
by Frosty

Approved Certification Marks for Ontario/Canada

Started by Admin

Replies: 0
Views: 2,304

March 12, 2019, 06:44:50 PM
by Admin

How can chalenge the 308A Sheet metal License

Started by DAVID

Replies: 3
Views: 1,061

March 04, 2019, 08:32:43 PM
by howitt

Attach Air Intake to Old B-Vent

Started by dforsman

Replies: 3
Views: 3,014

March 04, 2019, 06:30:21 PM
by Admin

Bad HSI or board?

Started by Brad.B.

Replies: 10
Views: 4,234

February 17, 2019, 09:16:41 AM
by Porcupinepuffer

Goodman 1-stage gas valve switch intermittent

Started by Brad.B.

Replies: 0
Views: 2,275

February 09, 2019, 05:47:13 PM
by Brad.B.

Coleman Echelon CP9C100C16MP11 failing when fan switches speed mode

Started by ucph

Replies: 5
Views: 3,427

January 12, 2019, 02:14:21 PM
by Admin

Goodman Service Bulletin SF-082

Started by walker

Replies: 0
Views: 3,498

January 08, 2019, 01:23:29 PM
by walker

A. O. Smith Recalls 30-Gallon Gas Water Heaters Due to Fire Hazard

Started by Admin

Replies: 1
Views: 2,353

December 27, 2018, 10:02:22 AM
by bster352

Evap Coil Placement on Electric furnace

Started by scarey8

Replies: 6
Views: 11,494

December 21, 2018, 02:43:56 PM
by Admin

NY Thermal Inc. (NTI) recalls Trinity Tft Gas-Fired Hot Water Boilers

Started by Admin

Replies: 0
Views: 2,312

December 21, 2018, 11:17:07 AM
by Admin

A. O. Smith Recalls Ultra-Low NOx Water Heaters Due to Fire Hazard

Started by Admin

Replies: 0
Views: 2,251

December 21, 2018, 10:35:33 AM
by Admin

White-Rodgers Recalls Sensi Thermostats Due to Fire Hazard

Started by Admin

Replies: 0
Views: 2,283

December 21, 2018, 10:34:21 AM
by Admin

Miles Industries Recalls Gas Fireplaces Due to Burn Hazard

Started by Admin

Replies: 0
Views: 2,304

December 21, 2018, 10:33:08 AM
by Admin

Navien Recalls Tankless Water Heaters and Boilers Due to Risk of Carbon Monoxide

Started by Admin

Replies: 0
Views: 2,241

December 21, 2018, 10:31:54 AM
by Admin

Trane CHHB of 100-ton

Started by Buddyhughes

Replies: 1
Views: 2,666

December 05, 2018, 04:36:25 PM
by rmuntz

215/01 . G3 may clean a appliance? How to access burners without removing items?

Started by wantboost

Replies: 15
Views: 5,301

November 25, 2018, 10:50:14 PM
by Admin

Supreme Court ruling?

Started by howitt

Replies: 1
Views: 2,487

November 15, 2018, 08:23:45 PM
by Admin

Red tag

Started by Mmtc79

Replies: 6
Views: 3,225

November 09, 2018, 06:46:33 PM
by Mmtc79

Question about Appliance connectors in furnaces

Started by walker

Replies: 19
Views: 19,040

November 04, 2018, 06:47:47 PM
by Admin

Flexible Dryer Vent Transition

Started by Admin

Replies: 1
Views: 3,962

November 03, 2018, 05:18:43 PM
by Porcupinepuffer

Napoleon contential furnaces

Started by Mmtc79

Replies: 0
Views: 2,527

October 29, 2018, 09:11:48 PM
by Mmtc79

electrical wire in cold air return

Started by ck_chino

Replies: 1
Views: 5,691

October 23, 2018, 03:13:07 PM
by Admin

combustion test port

Started by 3450BB

Replies: 3
Views: 3,083

October 16, 2018, 02:23:31 PM
by Admin

Clearance from underside

Started by Mmtc79

Replies: 3
Views: 2,862

October 16, 2018, 09:55:39 AM
by Admin

ODP Tags

Started by tenletters

Replies: 4
Views: 4,417

September 22, 2018, 09:12:30 AM
by tenletters

B149.2-15 Propane storage and handling code & FS-XXX-15 Amendments

Started by Admin

Replies: 2
Views: 10,748

September 02, 2018, 11:03:36 PM
by Admin

Mechanical room in garage

Started by Hgye

Replies: 4
Views: 3,816

August 31, 2018, 01:36:27 PM
by Hgye

Rudd. Ugra-12erajs

Started by Stevebeachl

Replies: 2
Views: 2,569

August 18, 2018, 01:31:11 PM
by Stevebeachl

Failed Enbridge Inspection

Started by Porcupinepuffer

Replies: 6
Views: 3,788

August 12, 2018, 07:52:44 PM
by Hvacpimp

TSSA – Drip Pocket Requirements

Started by Admin

Replies: 13
Views: 14,877

August 07, 2018, 07:14:07 AM
by DaveP

Clause C.2.5

Started by Brad.B.

Replies: 4
Views: 3,340

July 28, 2018, 11:46:18 AM
by Admin

Pressure names

Started by Brad.B.

Replies: 3
Views: 3,133

July 15, 2018, 01:05:10 PM
by Brad.B.

Clause 8.14.8(e)

Started by Hgye

Replies: 4
Views: 3,056

July 11, 2018, 09:52:31 PM
by Hgye

Protection of Warehouse Unit Heaters from Damage B149 4.23

Started by McSpeedyPantsJr

Replies: 0
Views: 2,470

July 11, 2018, 09:49:06 AM
by McSpeedyPantsJr

gas piping sizing question

Started by dmfv

Replies: 9
Views: 12,977

July 08, 2018, 08:44:18 PM
by playatwork007

Oil tanks

Started by Hgye

Replies: 3
Views: 2,956

July 04, 2018, 09:04:11 PM
by slo-115

dryer exhaust vent distance from ground and surrounding windows and doors

Started by ck_chino

Replies: 3
Views: 8,464

June 15, 2018, 05:04:30 PM
by Admin

G1 G2 G3 Phase out

Started by thebulldog

Replies: 4
Views: 6,985

May 20, 2018, 08:41:52 PM
by Brad.B.

Looking for a study related information before sitting the redseal exam (BC)

Started by kane6789

Replies: 0
Views: 2,543

May 19, 2018, 09:48:59 AM
by kane6789

Leak down tests

Started by Hgye

Replies: 10
Views: 4,404

May 18, 2018, 04:46:23 PM
by Hgye

Outdoor Gas Shut-Off

Started by walker

Replies: 7
Views: 4,257

May 15, 2018, 02:02:20 PM
by bster352

belimo actuator testing

Started by mattmctree

Replies: 3
Views: 3,212

May 13, 2018, 07:23:25 AM
by kielsheister

Water Heater Plug

Started by Porcupinepuffer

Replies: 10
Views: 4,747

May 03, 2018, 03:40:15 PM
by Admin

Engineered air

Started by mattmctree

Replies: 4
Views: 3,445

April 29, 2018, 07:59:30 PM
by mattmctree

clearence to a gas meter.

Started by plott hound

Replies: 6
Views: 4,029

April 25, 2018, 09:31:12 AM
by bster352

Regency Model U39 & U37 Gas Stove Recall

Started by Admin

Replies: 0
Views: 2,757

April 23, 2018, 04:12:00 PM
by Admin

Boiler efficiency

Started by bster352

Replies: 2
Views: 2,916

April 17, 2018, 09:10:56 AM
by bster352

G1 license question

Started by plott hound

Replies: 7
Views: 4,573

March 29, 2018, 04:39:23 PM
by viking

MIXING VALVE on water heaters ( residential)

Started by hvactech83

Replies: 15
Views: 17,913

March 13, 2018, 08:38:20 PM
by tenletters

313 A certification hours

Started by harshal

Replies: 1
Views: 3,307

March 02, 2018, 06:24:33 PM
by Admin

Residential Annual Heating Bills Comparison Analysis - Ottawa 2018

Started by Admin

Replies: 1
Views: 2,938

January 05, 2018, 02:41:14 PM
by walker

Any Residential Heat Loss & Heat Gain Calculations Course Online?

Started by tenletters

Replies: 2
Views: 2,970

January 01, 2018, 06:21:45 PM
by tenletters

Propane Line Pressure Regulator

Started by Porcupinepuffer

Replies: 3
Views: 3,155

December 20, 2017, 04:55:15 AM
by Porcupinepuffer

garage heater venting

Started by plott hound

Replies: 5
Views: 4,668

December 16, 2017, 09:50:40 AM
by plott hound

pressure switch open and closed and open but not staying closed gmss921004

Started by old furnace man

Replies: 18
Views: 5,800

November 22, 2017, 07:06:00 PM
by walker

Unions: Code 6.14.4

Started by Porcupinepuffer

Replies: 4
Views: 4,517

November 14, 2017, 09:38:35 AM
by bster352

Filling out gas tag confusion

Started by Porcupinepuffer

Replies: 3
Views: 3,782

November 09, 2017, 08:34:52 AM
by NoDIY

Multiple meter identification

Started by bster352

Replies: 4
Views: 3,598

November 02, 2017, 05:18:16 PM
by Porcupinepuffer

Diamondback

Started by Mmtc79

Replies: 4
Views: 3,851

October 30, 2017, 05:55:29 PM
by NoDIY

Pressure Test Propane System

Started by walker

Replies: 9
Views: 4,784

October 29, 2017, 11:58:28 AM
by Admin

Enbridge Technical Documents

Started by Admin

Replies: 0
Views: 2,776

October 18, 2017, 10:11:21 AM
by Admin

Maximum threaded to welded after meter?

Started by howitt

Replies: 7
Views: 4,326

October 18, 2017, 06:45:41 AM
by Porcupinepuffer

Emergency generator shut off

Started by howitt

Replies: 4
Views: 3,505

October 17, 2017, 09:43:26 AM
by Attavior

Furnace and rooftop servicing and safties

Started by mattmctree

Replies: 2
Views: 3,131

October 16, 2017, 12:04:04 PM
by rmuntz

6.18.3.2

Started by Attavior

Replies: 4
Views: 3,476

October 14, 2017, 09:25:45 PM
by Mmtc79

Gas tite and csst

Started by mattmctree

Replies: 1
Views: 3,636

October 13, 2017, 07:36:50 PM
by Admin

Safety testing on equipment

Started by mattmctree

Replies: 3
Views: 3,144

October 12, 2017, 11:18:20 PM
by Mmtc79

Armstrong furnace pressure switch problems

Started by Mmtc79

Replies: 1
Views: 3,036

October 11, 2017, 09:13:53 AM
by bster352

Duct smoke alarms

Started by mattmctree

Replies: 2
Views: 3,102

October 11, 2017, 09:05:46 AM
by bster352

Insta Flame Gas Fireplace Model DV32RN

Started by Matatan

Replies: 3
Views: 4,716

October 09, 2017, 05:55:54 PM
by harshal

Unit heater in garage

Started by Mmtc79

Replies: 5
Views: 5,985

October 06, 2017, 06:35:53 PM
by Admin

7.27.1 ?

Started by Mmtc79

Replies: 9
Views: 5,661

October 06, 2017, 03:16:10 PM
by Mmtc79

OCOT Code of Ethics

Started by Admin

Replies: 0
Views: 3,014

October 04, 2017, 01:31:39 PM
by Admin

Gas Furnace Use for Construction Heat - May 1, 2017 Changes

Started by Admin

Replies: 2
Views: 4,430

October 04, 2017, 06:39:57 AM
by Admin

Clearance Confusion

Started by Admin

Replies: 9
Views: 14,987

October 02, 2017, 06:38:14 AM
by Admin

Purchasing gas and oil code books ( B149.1 and B139 )

Started by FurnaceFellow1988

Replies: 2
Views: 3,646

October 01, 2017, 03:54:37 PM
by walker

Anyone have experience with the Toyotomi Oil Miser water heaters?

Started by Jutzi46

Replies: 0
Views: 2,647

September 22, 2017, 10:41:06 AM
by Jutzi46

Cast bonding requirement

Started by mattmctree

Replies: 1
Views: 3,019

September 22, 2017, 10:27:18 AM
by Jutzi46

Gas pipe painting can any one do it

Started by mattmctree

Replies: 1
Views: 2,704

September 22, 2017, 10:17:50 AM
by Jutzi46

Cutter for 636

Started by Mmtc79

Replies: 3
Views: 4,814

September 11, 2017, 02:29:22 PM
by bster352

Code 8.14.8 (d)

Started by Mmtc79

Replies: 3
Views: 4,601

September 07, 2017, 10:13:29 AM
by Admin

york 2 stage furnace question

Started by plott hound

Replies: 2
Views: 4,092

September 06, 2017, 03:24:22 PM
by plott hound

C.2.16 For Single Appliance Venting Applications

Started by DaveP

Replies: 2
Views: 3,334

July 14, 2017, 01:43:22 PM
by DaveP

Resources for learning about ductless splits?

Started by tenletters

Replies: 1
Views: 3,044

July 12, 2017, 11:21:22 AM
by rmuntz

Leak sealer

Started by mattmctree

Replies: 2
Views: 3,404

June 28, 2017, 09:06:50 AM
by rmuntz

standard temps and pressure

Started by mattmctree

Replies: 0
Views: 2,833

June 27, 2017, 01:50:45 PM
by mattmctree

guage connections on rooftop unit

Started by mattmctree

Replies: 3
Views: 3,514

June 25, 2017, 06:17:04 PM
by mattmctree

Fire Extinguishers

Started by Troyboy

Replies: 1
Views: 2,982

June 21, 2017, 04:42:08 AM
by Admin

source of ignition

Started by screech

Replies: 7
Views: 5,221

June 17, 2017, 03:19:35 PM
by screech

6.17.4

Started by Attavior

Replies: 2
Views: 3,531

June 03, 2017, 03:11:40 PM
by Attavior

Breaker Size

Started by walker

Replies: 3
Views: 4,176

May 28, 2017, 08:41:03 AM
by Porcupinepuffer

Outdoor DB and indoor WB

Started by tenletters

Replies: 1
Views: 3,612

May 25, 2017, 08:26:02 PM
by Saturatedpsi

optimize operation of AHU

Started by James Yang

Replies: 8
Views: 5,979

May 22, 2017, 11:32:28 AM
by James Yang

Pipe Sizing

Started by walker

Replies: 10
Views: 5,051

May 06, 2017, 04:50:13 PM
by walker

Bvent outside ?

Started by Gasguy79

Replies: 2
Views: 3,428

May 04, 2017, 02:36:24 PM
by bster352

Gas line

Started by harshal

Replies: 1
Views: 3,109

May 01, 2017, 02:27:10 PM
by Admin

Gas Copper

Started by Porcupinepuffer

Replies: 11
Views: 12,871

April 28, 2017, 11:44:21 AM
by Porcupinepuffer

B149.1-15 and B149.2-15 Amendments

Started by Marc Dempster

Replies: 6
Views: 6,233

April 14, 2017, 11:05:12 PM
by Admin

Multi Flex PERT Composite Pipe

Started by Admin

Replies: 8
Views: 6,001

April 13, 2017, 02:09:56 PM
by bster352

IPEX 636 Installation Guide - REVISED Jan 20, 2017

Started by Admin

Replies: 4
Views: 4,145

March 27, 2017, 01:20:52 PM
by Admin

vanEE 41600 wire connector location

Started by Dan594

Replies: 1
Views: 2,971

March 23, 2017, 05:23:16 PM
by Admin

Lennox modulating furnace

Started by harshal

Replies: 3
Views: 3,686

February 17, 2017, 04:48:17 AM
by Sergroum

question trouble shooting goodman propane furnace

Started by mattmctree

Replies: 12
Views: 6,768

February 17, 2017, 04:43:22 AM
by Sergroum

Furnace Switch Location

Started by Porcupinepuffer

Replies: 3
Views: 10,869

February 13, 2017, 02:06:58 PM
by Porcupinepuffer

dryer exaust

Started by oilman

Replies: 2
Views: 3,918

January 13, 2017, 09:54:24 PM
by oilman

Manual for Insta-Flame, Model DV34RN,

Started by RickandSharri

Replies: 2
Views: 11,217

January 03, 2017, 11:11:38 AM
by Admin

New Carrier & ICP 35" Condensing Furnace Pressure Switch Errors

Started by Admin

Replies: 18
Views: 16,994

December 24, 2016, 03:21:51 AM
by Sergroum

Beckett Cleancut Oil Pump Advisory

Started by Porcupinepuffer

Replies: 2
Views: 4,192

December 06, 2016, 11:06:05 AM
by rmuntz

Mind Boggling No Heat

Started by Ilija Atanackovich

Replies: 8
Views: 5,630

December 01, 2016, 06:35:32 PM
by Ilija Atanackovich

venting codes

Started by mattmctree

Replies: 1
Views: 3,894

November 03, 2016, 09:52:39 AM
by Admin

question about negative pressure

Started by mattmctree

Replies: 3
Views: 4,261

November 03, 2016, 09:32:32 AM
by mattmctree

Sidewall vent termination argument

Started by hottubbrad

Replies: 4
Views: 12,339

November 02, 2016, 05:49:49 PM
by Porcupinepuffer

Practice exam - Refrigeration Operator Class "B" Certification

Started by shawnpower1

Replies: 1
Views: 7,616

October 22, 2016, 10:12:04 AM
by Admin

Underground gas line installions and relief lines

Started by slo-115

Replies: 1
Views: 4,023

October 16, 2016, 02:24:31 PM
by Admin

American Standard recalls gas water heaters

Started by Admin

Replies: 0
Views: 3,322

October 16, 2016, 01:14:24 PM
by Admin

Orphaned hot water tanks

Started by Hgye

Replies: 2
Views: 4,518

October 15, 2016, 10:03:21 AM
by Admin

union in drop ceiling?

Started by howitt

Replies: 2
Views: 4,492

September 20, 2016, 04:16:50 PM
by Admin

Condensate Drains - PVC vs CPVC

Started by Shane

Replies: 2
Views: 6,733

September 14, 2016, 06:26:57 PM
by Porcupinepuffer

Montigo Fireplace

Started by G.P.

Replies: 4
Views: 7,685

September 11, 2016, 06:16:57 PM
by Stubbers

Sensing Bulb Placement Question

Started by Porcupinepuffer

Replies: 5
Views: 6,031

August 16, 2016, 04:13:37 PM
by harshal

writing a pressure gas test

Started by moenaboulsi

Replies: 5
Views: 15,683

August 11, 2016, 12:57:45 PM
by simon

Dryer vent in condos in Ontario, Canada?

Started by baconpotatos

Replies: 3
Views: 7,403

August 10, 2016, 09:26:57 AM
by Admin

Matching uncased coil for a Carrier 24aca418a0030010

Started by ATech

Replies: 6
Views: 5,425

August 02, 2016, 07:48:25 PM
by walker

High pressure leak

Started by Porcupinepuffer

Replies: 3
Views: 4,163

August 02, 2016, 01:18:30 PM
by Admin

Keeprite c9mvx100l20a

Started by walker

Replies: 7
Views: 5,708

July 31, 2016, 07:32:19 PM
by piru

Thermostat

Started by Hgye

Replies: 2
Views: 4,167

July 18, 2016, 07:11:06 PM
by Hgye

EE eng. advice pls on furnace blower OEM replacement

Started by Steve_S

Replies: 2
Views: 4,107

July 18, 2016, 05:02:17 PM
by slo-115