It’s time again for the annual Residential Heating Showcase. The intent is to help contractors prepare for this busy period by doing the research that will help them distinguish between brands.
A cool concrete slab is like a black hole for Btus. It gobbles up any heat that dares to get close. The solution is to install a mixing assembly operated by a controller that measures the boiler’s inlet temperature, as well as the water temperature supplied to the distribution system.
In 1905, a boiler in a Boston shoe factory blew up, traveled a great distance through the air, and landed, with delightful justice, in the front yard of the operating engineer’s house. Think it got his attention?
This system is the missing link between one- and two-pipe steam. It was used in tall buildings in the early 1900s because a building this tall wouldn’t work well with one-pipe steam if the supply came up from the basement.
A radiant floor heating solution leveraging Polyethylene of Raised Temperature Resistance (PE-RT) technology from The Dow Chemical Company (Dow) is the hy-PE-RTube™.
A tradeoff has always existed between the water temperature at which hydronic heat emitters are sized and their cost. The higher the supply water temperature assumed by the designer, the smaller the required heat emitters and the lower their installed cost.
Two dual-fuel natural gas/propane and No. 2 fuel oil condensing boilers — GMI-8M-DF and GMI-4M-DF — have been added to the company’s condensing boiler lineup. The boilers can run either natural gas or propane as the main fuel with No. 2 fuel oil as the backup.