| Re: [GMCnet] Guess what’s coming to Chez Denney [message #362988 is a reply to message #362962] |
Tue, 23 March 2021 16:20   |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma:
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You guys need to seriously consider your heating options before you start construction. We have a great comparison of an overhead furnace, in the concrete floor radiant, and overhead radiant heat. All in the same well insulated and sealed 54'x54'x14' building.
In the first building after the extremely high gas bills over a few years with poor heat distribution the furnace was scrapped and we installed overhead radiant heat. In a 14'x54'x14' addition we added we installed in the floor hot water radiant heat but the owner did not listen to me and follow proper concrete floor to ground insulation. Can't change it now as it is all underground and the concrete floor.
In am adjacent 54'x54'x20' similarly insulated building we installed properly insulated concrete slab in floor radiant heat. It's cost to operate is siumilar to the high miunted radiant heat system installed next door.
Conlusions:
All of this is natural gas powered and expect the rates to go up with the Fed govt's current attitude on any kind of energy usage.
1. Forget the furnace. It's monthly cost is triple the other solutions. From overhead it distributes the heat poorly to where you need it.
2. In floor radiant works very well with some drawbacks.
2a. It is extremely expensive to install and must be done at building construction time. It takes a long time to bring a concrete slab up to desired temperature so If you want to run a timer thermostat do no expect quick changes in temperature.
2b. The system looses a lot of heat into the ground if the below floor and vertical side insulation is not done properly.
3. Over head radiant heating. It heats objects, not air, so loss to outside air is greatly reduced compared to other system. Can be retrofitted later. Usage costs are similar to a properly insulated in floor system. Can be idled to a lower temp to save energy and recovers quickly when needed.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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