Greetings... First post here!
I am researching a new furnace for my 30 yo house in Calgary. I want the most efficient unit available, and am debating between the Carrier/Bryant 58MVP/+90i vs. the Rheem/Rhud Modulating unit. Carrier seems to have the slight edge on the AFUE rating, but the Modulating feature seems compelling for our long and cold heating season, but certainly the Carrier will do the job too.
But, one factor I am having trouble finding facts about is the electrical consumption of these two units. Furnacecompare.com rates the Carrier/Bryant at Total Annual Auxiliary Electric (kW/hr) of 105kWh, which is low, but that site just gives me a proxy error for the Rheem. The Rheem web side tells me that the motors are 373W at 6.8A, but that doesn't tell me annual energy consumption.
One of my goals is to participate in Canada's 'One Tonne Challenge' goals, and electrical usage in Alberta is all coal fired, at a whopping 925 grams greenhouse gas (GHG) per KWh. So, the less electricity, the less GHG, not to mention, the smaller my investment in solar panels when I eventually make that investment. Electrical consumption becomes a significant deciding factor for me that the industry seems to completely ignore rating.
Anyone know the facts of electrical consumption on these units?