Homeowners know when they’re dry, and when they’re cool. They may not be able to illuminate a pilot light, or air seal an attic floor, or balance a home heating system, but they know when cold is. Bedrooms are sometimes the coldest space in the building so people only deal with it most frequently. Place the kid in the nice bedroom, put a couple extra blankets over the bed and order them to finish their homework.
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Is frustrating to deal with a cool bedroom. If you turn up the heat to warm the room, it gets too warm for the rest of the house. Shut down all registers of heating except the office, and placed so much back pressure on the furnace. Too often I see a household attempting to adjust the temperature of one room by closing heating registers in other rooms and soon they will have half the registers closed in the house and the home heating system working overtime to satisfy the thermostat heating request.
The home heating system is usually designed by a professional heating contractor who spent a number of years going to HVAC school for several hours a week. An apprentice program must be passed by a heating contractor before he or she can even take the test for their travelman license.
They are taught how to do a heating charge estimate on a home during the instructional process of the heating and cooling school. They take the heating load and develop a designed heating system which includes size of the furnace, capacity of the fan, size of the duct, air flows and size of the register. In other words, heating systems are designed to simultaneously heat all rooms and work as a system with all registers open.
If you have a cooler bedroom than the rest of the house one of two things has happened:
A contractor built the heating device, which narrowly passed the test, or
The heating system fails.
Just I had a report from a resident that they had too little air ventilation in their dining room from the heating system. The dinning room was better than the rest of the building. I reported a 75 per cent drop in air pressure at the register with a pressure hood relative to the living room register. I cut the register cover, took a mirror and a torch and stared down the interior of the heating pipe.
I could see that a flow damper valve was installed in the heating duct, with the mirror to see around the initial elbow. Further analysis found that all domestic heating ducts had a flow damper mounted near to the registers. The damper in the dining room was the only one closing off most of the way. The homeowner did not know that flow dampers were a part of the heating system for the homes.