Home Improvement Stack Exchange
Home Improvement Stack Exchange

Questions tagged [radiant-heating]

88 questions
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Can I use electric radiant heating as primary heating?

Our home was build in 2001 and currently has a oil furnace that is at the end of its life. We are looking for a more efficient heating option and stumbled across an electric radiant heating product called STEP HEAT that can be installed between the…
HomeHelp12
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In-floor radiant heating hooked up to hot water tank in new home - questions about how it works and operating it

I've moved into a new 2 story house. The heating system is in-floor water heating, and the heat source is an electric hot water tank. I'm hoping you guys can help me figure out how the system works and answer some questions I have about it. Here…
jmrah
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What is the impact of a backwards connected hot water radiator?

When building a hot water heating system the plumber has connected one of the hot water radiators backwards, i.e., the loop comes in at the bottom of the radiator and leaves the radiator on the other side at the top. Unfortunately, this has been…
user
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Why does my heat pump "blow" at warm (even hot) outdoor temperatures? Should not it be inactive?

We have a Hoval UltraSource B compact C (8,11/200) air/water heat pump in our house. I have noticed in warm weather that occasionally my heat pump "blows" outside. I then thought that my heat pump cools in warm weather and found with a web search…
Sybil
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Radiant heating under an enclosed balcony?

I have a couple of rooms that are functionally a fully-enclosed 2nd-floor balcony, with a concrete beam + breeze block system as the base, and floor tile cemented directly over that (no insulation that I'm aware of). I want to add radiant heating…
swiftcoder
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How would I install hydronic floor heat on top of a rigid foam insulated basement floor?

I intend to finish a part of my basement following this guideline from Fine Homebuilding and Building Science. There are two options I could come up with for installing hydronic radiant heat extrusions, and I can't decide which of the two is most…
kavisiegel
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How should I insulate hydronic radiant heating under floorboards

A couple weeks ago a contractor installed hydronic radiant heating at my place. The building is two floors (studio above a garage) and the heating was installed under the floorboards. When he finished installing the piping and pumps he told me I'd…
Stickel
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Is insulation necessary under slab with hydronic radiant heat?

We are getting ready to pour a new concrete slab over top of an old slab where a house was demolished. The old slab is 4-6 inches thick, and the new slab will be 3-4 inches thick. We would like to run PEX lines for a hydronic radiant heat system in…
BWDesign
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How would I size a heating system that would only be used to warm the floors?

I have a forced air heating system that works well, and I'm not looking to replace it. However, I'd like to get the "warm floors" effect of radiant floor heating. I've heard that with a lot less BTU/hr, you can still do "floor warming" by using a…
David Pfeffer
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Can I configure a two-stage thermostat to manage two heat systems?

The System I have a relatively simple system. It starts out with a standard, run-of-the-mill Rheem gas forced air setup with central air. One transformer in the furnace goes to one thermostat like normal. I recently upgraded the wire to 18/5 so that…
Geek Stocks
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Can I install wide-plank solid hardwood over radiant floor heat?

I've been planning to replace my living room carpet with hardwood. I have radiant heating under the floor (boiler and pex piping). I was originally looking at 3/4" thick 3" to 5" wide boards, but after looking into how to DIY, I ended up with more…
rtaft
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Hardwood loose, has gap over radiant floor

Just bought a new place with white oak hardwood and radiant heating. The hardwood is 3/4" (verified). Floor has developed gaps in certain areas. One area in particular is loose when I walk on it, so the gap is more pronounced. Looks like the gap…
Dan F
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Inground Conduit Box for Driveway Snow Melting

I'm installing snow melting cables into a concrete and stone paver driveway. It requires 5 mats rated at 25 Amps and 6000 watts. I also need a 6th small run of heating wire to cover the full area. The cold leads (non-resistive conductor cable) are…
Fredo Corleone
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Help wiring a Nest thermostat in an unusual situation

The attached picture shows my current wiring. Notice there are two thermostats. The top one (Carrier, with four conductors) controls hot air heating. The bottom one (with two conductors, old mercurty style) controls radiant floor heeting. Although…
Wynne
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Joist trak radiant tube length in last bay

I'm installing my first radiant floor system using 1/2 inch tubing and Joist Trak plates. I purchased a 1000 foot roll of tubing and cut it into 5 200' pieces. While running my loops, I'm finding there is either extra or not enough tubing to…
Code Junkie
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