Our home is 80 years old and we just replaced our 20 year old unit with a new Buderus (85% eff) and, in the 10 years we've lived in this house, we've never had such smooth and consistent heat. Amazing unit. I didn't realize how bad our old unit was!

System is very efficient but the parts are very expensive. You would figure that after spending the higher price for a so called "excellent" unit you would be covered for malfunctioning parts for two years. The fan motor malfunctioned and it alone will cost $1000.00 not including the labour to install it. So much for efficiency and cost savings. Beware of this unit!!

This Buderus boiler replaced a very old boiler that was installed more than 40 years ago and I have nothing but rave reviews for the Buderus boiler systems. It cut my gas bill in half and I am far more comfortable than I was with the behemoth that was originally a coal burner and converted to gas umteen years ago. Buderus makes a great boiler.

We live in a very old house close to the sea and had problems keeping it warm in the winter. We called three contractors (we subscribed to Richards HVAC Buyers Guide which helped us a lot) and we liked the contractor who gave us his estimate to fix our problem. The did a fantastic job installing the new system (very professional) and this winter was the first winter in 15 years where I've been warm in this house thanks to Richard and the Buderus contractor who installed this system. I gave our space heaters to charity. Our new Buderus boiler is wonderful.