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does radiant heat work under carpet in basement?

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does radiant heat work under carpet in basement? beerguzzler50 03-10-2007
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Posted by Matt Whiting on March 11, 2007, 11:53 am
Paul M. Eldridge wrote:
> Is there any insulation underneath the slab and, if so, how much?
> Carpet and under pad are reasonably good insulators and so more of
> this heat will be re-directed downward and out of your home. It
> doesn't strike me as a good idea, especially if the slab is
> uninsulated.

Yes, the slab should be insulated from the ground no matter what floor
covering is selected.

Matt

Posted by Notan on March 11, 2007, 11:55 am
Doug Miller wrote:
>> beerguzzler50@yahoo.com wrote:
>>> I am thinking about using radiant heat panels (Roth) in an in process
>>> finished basement. I have hydronic already in the house with a
>>> boiler. But I would be using carpet in the basement...will these
>>> types of radiant heat setups work well in a basement with carpeting?
>> I'm thinking that radiant heat *can't* be good for carpet or its backing.
>>
> A heated floor becomes uncomfortable to walk or stand on when its surface
> temperature exceeds 85 degrees F, which means a few degrees higher than that
> under the carpet. Do you really suppose that 88 deg F will be harmful?

I thought it might affect different carpets/backings, differently,
but according to Matt, I'm wrong.

I guess Matt knows!

(I'd still check with a carpet person, first.)

--
Notan

Posted by Doug Miller on March 11, 2007, 1:07 pm
>Doug Miller wrote:
>>> beerguzzler50@yahoo.com wrote:
>>>> I am thinking about using radiant heat panels (Roth) in an in process
>>>> finished basement. I have hydronic already in the house with a
>>>> boiler. But I would be using carpet in the basement...will these
>>>> types of radiant heat setups work well in a basement with carpeting?
>>> I'm thinking that radiant heat *can't* be good for carpet or its backing.
>>>
>> A heated floor becomes uncomfortable to walk or stand on when its surface
>> temperature exceeds 85 degrees F, which means a few degrees higher than that
>> under the carpet. Do you really suppose that 88 deg F will be harmful?
>
>I thought it might affect different carpets/backings, differently,
>but according to Matt, I'm wrong.
>
>I guess Matt knows!
>
>(I'd still check with a carpet person, first.)
>
Radiant heat is used under carpet frequently. It's just not a problem. 88
degrees won't hurt the carpet. (Would you worry about the carpet being harmed
by high temperatures in the summer, if you didn't have air conditioning?)

--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.

Posted by Notan on March 11, 2007, 1:12 pm
Doug Miller wrote:
>> Doug Miller wrote:
>>>> beerguzzler50@yahoo.com wrote:
>>>>> I am thinking about using radiant heat panels (Roth) in an in process
>>>>> finished basement. I have hydronic already in the house with a
>>>>> boiler. But I would be using carpet in the basement...will these
>>>>> types of radiant heat setups work well in a basement with carpeting?
>>>> I'm thinking that radiant heat *can't* be good for carpet or its backing.
>>>>
>>> A heated floor becomes uncomfortable to walk or stand on when its surface
>>> temperature exceeds 85 degrees F, which means a few degrees higher than that
>>> under the carpet. Do you really suppose that 88 deg F will be harmful?
>> I thought it might affect different carpets/backings, differently,
>> but according to Matt, I'm wrong.
>>
>> I guess Matt knows!
>>
>> (I'd still check with a carpet person, first.)
>>
> Radiant heat is used under carpet frequently. It's just not a problem. 88
> degrees won't hurt the carpet. (Would you worry about the carpet being harmed
> by high temperatures in the summer, if you didn't have air conditioning?)

I wasn't thinking short term effects, but rather, long(er) term.

Apparently, I was wrong!

--
Notan

Posted by Matt Whiting on March 11, 2007, 2:14 pm
Notan wrote:
> Doug Miller wrote:
>>> beerguzzler50@yahoo.com wrote:
>>>> I am thinking about using radiant heat panels (Roth) in an in process
>>>> finished basement. I have hydronic already in the house with a
>>>> boiler. But I would be using carpet in the basement...will these
>>>> types of radiant heat setups work well in a basement with carpeting?
>>> I'm thinking that radiant heat *can't* be good for carpet or its
>>> backing.
>>>
>> A heated floor becomes uncomfortable to walk or stand on when its
>> surface temperature exceeds 85 degrees F, which means a few degrees
>> higher than that under the carpet. Do you really suppose that 88 deg F
>> will be harmful?
>
> I thought it might affect different carpets/backings, differently,
> but according to Matt, I'm wrong.
>
> I guess Matt knows!
>
> (I'd still check with a carpet person, first.)

I researched hydronic radiant heat before building my log house. It
certainly is a good idea to do your own research though, and it isn't a
good idea to post incorrect information.

Matt

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