Boiler Ratings Explained
When you look in a boiler manufacturer's catalog you'll see that there are several types of ratings for each boiler. There's the Input rating, the Gross Output rating (wh...
Hot-Water Heating → Boilers Help Topics
This section is your guide to hot-water heating systems with information about system design and piping, air elimination, pumping away, primary-secondary pumping, valves, radiators, troubleshooting tips, and more.
Recent Articles in Hot-Water Heating → Boilers
Modulating-Condensing Boilers
A question asked on the Wall, "Who, in your opinion, makes the best modulating-condensing boiler?" Andrew Hagen replies: My favorites in order: 1. Viessmann Vitodens 2. T...
How to Have a Boiler Replaced
"We haven't had decent heat since that heating contractor left our basement." She was about as angry as any homeowner who had ever called me. "We paid good money for that...
Boiler Failure After Two Years
The boilers (and there were 20 of them) were laying out there in the parking lot, not far from the boiler room door. I could see them as Joe and I drove up. “Nobody knows...
Wall-Hung Boilers (And All That Comes With Them)
They sell a lot of boilers on the other side of the sea. Sixteen countries make up the European/Chinese boiler market. Here they are, high to low, in order of sales durin...