Rite Boilers can provide automatic stack dampers for all our atmospheric fired boilers. In addition to keeping the heat inside the boiler as the burner cycles on and off during normal operation, they'll also stop winter air from coming down the stack and freezing the water in the boiler tubes (potentially bursting them) whenever the boiler is not in operation.

In chimney vented residential boilers, both steam and hot water, it is common for manufacturers to include an electrically operated flue damper between the boiler and chimney. By closing the flue pipe between heating cycles, less warm room air was...

vent dampers are only to be installed by qualified technicians. only ONE appliance can be controlled by ONE vent damper; if a furnace and water heater share a common flue, vent dampers must be installed BEFORE the flues join together. only use a vent damper on appliances with a draft hood/diverter

The draft we typically see on oil fired heating equipment like water heaters, boilers and heating furnaces is - 0.02" to 0.03" water column (w.c.) in the combustion chamber just over the fire - 0.04" to 0.06" w.c. in the breech - the flue pipe area between the top of the boiler and the bottom of the barometric damper.

A thermomechanical damper, unlike its counterpart, has no electrically activated parts. It consists of bimetallic fingers that extend into the vent pipe. When the heating unit fires, the hot gases heat these fingers and force them to separate. After the unit shuts down, these fingers close and block the flow of heat.

Hot Water Boiler Economizer PreHeater | Energy Efficiency - This is a hot water economizer and is a big preheater for domestic hot water use. This hot water boiler plant serves a large community for heating and domestic hot water use. Domestic hot water is used for showers, washing dishes, laundry, etc, etc, etc…. The cold water supply from the city is routed through the economizer to be pre ...

In looking at my flue temp recently, and realizing how cold it got for just a few minutes with the fluebox open...i've started giving more thought to the idea electric flue damper...it makes perfect sense, keep the hot air in and the cold air out .. i'd hate to think what my living room would feel like if the fireplace flue damper were left open ..