The CBC investigated these folks. You may want to check this out if you are looking at a Furnace or AC unit in Winnipeg...

http://www.cbc.ca/consumer/story/2009/06/01/mb-furnace-winnipeg-investigation.html

Basically the article suggests that these guys are only slightly more legit than scam artists.

I have to say, Great service guys,

So my 13 year old furnace kicked, So i picked up the phone and saw the ONE HOUR heating add in the yellow pages. i call 3 places and Furnasman's ONE HOUR was the only place to get to my home and sure enough them cam with in a hour.. (WOW) never had service like that before

So the out come was i had 3 cracks in the exchanger and there was CO in the home. i can only thank Furnasman's ONE HOUR that they have such smart techs and the on going training. When the tech found the cracks he asks me -have you had headaches,drowsiness,eye irritation... And i total did. So seeing what of all this happen i was in shock to fine out that they could even install the new furnace that same day.

Now i know that they are not the cheapest in town.. But come on guys for service like that. i would never had it any other way. So lets sum it up here in 4 points

1. Service when i want it
2. Very knowledgeable techs
3. Same day fix (install)
4. STOPPED ME FROM BEING SICK! (potentially saved my life)