Thermostat

[Hgye]

I have 2 wires going to the thermostat but I need 5 wires for heat/ac/fan.  I cannot pull a new wire.  What do you guys use to make this work?

[Admin]

Cheap option - Fast-Stat 5000,

http://www.fast-stat.net

Expensive option - Honeywell Prestige IAQ with Interface Module,

https://customer.honeywell.com/en-US/Pages/Category.aspx?cat=HonECC+Catalog&category=Prestige+2-Wire+IAQ+Comfort+System

[Hgye]

Excellent.  Thanks for the quick reply!