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Either as long as they have CAN/ULC-S642 certification.

QuoteClause 6.9.6
When a jointing sealant is used, it shall be certified to CAN/ULC-S642 and shall be applied to the male threads of a metal pipe. Tape shall be stretched and applied in a clockwise direction, with a 50% overlap leaving the first two starter threads bare.

Does it matter pipe dope or thread tape ??

 Capping off a line what's the difference with  rectoseal 5  and t2 plus and how does masters pro dope compare  ?? Or what's your preferred pipe dope

Do you like soft set or non setting?

I think a flex connector should only be used when there is an appliance to connect it to.

Any length nipple would be approved.

Where are you referring to 2 gas connectors ? Is a cabinet still considered a wall ??

Quote from: Admin on January 07, 2026, 10:10:42 PMIt's hard to tell but if that's two gas connecters connected together it's probably against code that they are passing through the cabinet.

QuoteClause 6.21.2
A gas connector shall
a) be protected from damage;
b) not pass through a wall, floor, ceiling, or partition;
c) be connected to rigid piping or tubing located in the same area as the appliance; and
d) comply with Clauses 4.5.2 and 4.9.1.

I would remove everything and install a nipple and cap into the shut off valve.

QuoteClause 6.12.1
During the period when an appliance is not connected to an outlet of a piping system, the outlet shall be made tight by means of
a) a plugged valve; or
b) either a cap or plug made of material compatible with the material of the piping or tubing system.

1. If I remove the flex hose can I cap the silver flare connection is that allowed ? The silver connection is connected to black pipe
2. If I cap after the shutoff is there a rule of how long the pipe should or should be

It's hard to tell but if that's two gas connecters connected together it's probably against code that they are passing through the cabinet.

QuoteClause 6.21.2
A gas connector shall
a) be protected from damage;
b) not pass through a wall, floor, ceiling, or partition;
c) be connected to rigid piping or tubing located in the same area as the appliance; and
d) comply with Clauses 4.5.2 and 4.9.1.

I would remove everything and install a nipple and cap into the shut off valve.

QuoteClause 6.12.1
During the period when an appliance is not connected to an outlet of a piping system, the outlet shall be made tight by means of
a) a plugged valve; or
b) either a cap or plug made of material compatible with the material of the piping or tubing system.

There is a small shut off valve where the flex line ends ( it's actually in the next cabinet)
1. Does a small pipe/ cap have to be added when the yellow flex line is removed ?
2.Can the flex line stay ?
3. Is a "dead leg ok on the system like this ?

How / where should this be capped off when going back to electric (there is a shutoff )
(What icon do I use to post a pic ?)

Quote from: Byron on August 20, 2025, 09:24:48 PMWe've just had a few guys do their G3 practical it was mostly knowing what parts of a furnace are called and what their purpose is, as well as knowing your scope of work from O.Reg 212/01 https://www.ontario.ca/laws/regulation/010212

wow, i think its different for everyone aye? some people have to thread pipe, cut, ream, and fix a faulty furnace i believe? but i assume if its for g3 then it shouldn't be too crazy, especially as someone who is challenging the exam, it should be pretty simple? can u please elaborate about the questions?

Hey! i'm starting to prepare for my theory g3 and practical g3 after that, i was wondering if anyone has any idea of what practical questions they are asking nowadays, i'm challenging the g3 by self study, never worked in hvac industry before, i learnt how to thread pipe and cut pipe from youtube, but wondering if there's more resources for practical exam.