Honeywell Wi-Fi thermostat Transformer?
I am about to replace my old 2 wire (red, white) thermostat with this Wi-Fi device but need some input on what transformer to use. I chatted with Honeywell TS and was told the correct method for wiring but was given info on purchasing the 110-24VAC. They had me order this what seems to me massive one that is rated as 24Vac 40VA. Now if I'm not mistaken the 40VA means 40 amps. I'm no electrical genius but it seems to me this thermostat will no way require 40 amps. My question is how small can I go to get where I want to be. The way it looks now I have to mount this sucker into some metal box and maybe add a fan and UPS. The cable The Home Depot sold me looks like it will support a fridge. Bigger than what runs into my A/C.
Anyone with anything to add that will seem more reasonable?
Thanks in advance.