tankless water heater for radiant heating

TANKLESS WATER HEATER FOR RADIANT HEATING GENERATOR

I did a bunch more research last night and stayed up until about 1 AM playing with LoopCAD. Thanks again, Brian, for the links, photos, info, and taking the time to talk to me over the phone.

TANKLESS WATER HEATER FOR RADIANT HEATING GENERATOR

I forgot to mention the propane for my building also runs a standby generator that runs once a week for 15 minutes, unless of course it has to run. I would definitely do it again the same way. The tank less in my building does an excellent job. Our propane bills have been in the $1200 range for the entire heating season.total for the two. My propane bill is included with my wife's shop that is 22 X 28 and it is stick built, 2 x 6 walls and 2 x 12 ceilings, two story, one two car garage door. I keep the building 50-52 starting Oct/Nov until.still turned on. Six zones in the floor, 2' foam insulated footings and 1' 4 X 8 foam on the perimeter only under the slab. Three garage doors 12 X 14, 10 X 8, and 8 X 8, walk door and two windows. Morton Building, 30 X 60 with 16' ceiling, fully insulated, and steel interior. The boiler also supplies heat to the breezeway that attaches the garage to the house (Zone 3). I should point out that I have a large bonus room on my garage which is attached and we use it every single day, so the heat up there is pretty critical (Zone 2). If the heat doesn't work right.the whole project wouldn't be very satisfying. So.in the end my boiler was about 2 to 3% of my total project cost. I can change the thermostat and the system responds even in the dead of winter.

A modulating boiler, like the one I have, can meet demand changes easily. I know you can get tankless water heaters too.but there again, they are more money than a standard tanked water heater.ģ. The boiler is 92% efficient which is much higher than a standard gas water heater.Ģ.

For me the way I justified the added expense was:ġ. Then, after researching it more, I decided to go with a boiler. So.when I considered a gas water heater to run the hydronic system in my garage, BTU input was one of the main factors I considered. The tank size has nothing to do with it, at least directly. The BTU input is going to be the important thing for heating. While electric water heaters all have pretty much the same elements in them regardless of size, gas water heaters come in different BTU inputs. One thing I would point out is not all gas water heaters are created equally. Otherwise I would just use another ordianary water heater. More money than a water heater, but we plan to stay at this location for a long time so I figure it may be worth the investment. I haven't bought a heater for my new shop yet and will investigate an on-demand unit. I set the thermostat on the water heater to it's lowest setting and it was pretty cheap to operate.

We have pretty cold winters and the system seemed to barely run at all. I found this to be a pretty comfortable temp to work in, as it feels a lot warmer with the radiant heat. If you were wanting to be much warmer than that, then maybe the water heater wouldn't keep up. I had a 42x45 Morton building with about 12' ceiling. I figured it was worth a shot to try the water heater as I would only be out a few hundred. Nothing special, just Menards mid-grade model. A boiler was going to run close to $2000 and the NG water heater was around $350 (several years ago). I had this same question when I did my first radiant system.

Tankless water heater for radiant heating