I've had a new furnace and a water tank installed recently by CozyWorld. I've talked to Boris on the phone and he came to our house on the next day to give us a quote. He was very helpful in explaining the multitude of different options that I had to choose from; he was also very professional and straight to the point. The quote from Boris was reasonable (in fact, it was about $1000 lower than another quote that I've received), so I've decided to go with CozyWorld.
I've bought the new furnace through CozyWorld (and the hot water tank at HomeDepot). The installers, Kam and Vali, did great job. Everything was done very carefully and professionally. They've spent a full day installing the furnace and the water tank (they've also installed a chimney liner and a humidifier). I liked that they did not rush through the job (as many other contractors do), but instead took their time and finished every little detail properly, the way it should be done.
So the bottom line is that now I'm very happy with my new furnace and new water tank. And I highly recommend CozyWorld - they offer truly great service at a reasonable price!