Hydronic radiant wall heating may sound like an alternative radiant system, but do you have any experience with this and do you think it is a great trade secret that should be more mainstream?
What is the best method of dealing with the latent load in a radiant ceiling cooling system?
The Rittling carboline panels appear to require an elevated supply temperature to produce enough heat. Do other panels operate at lower temps?
Energy conservation is greatly enhanced when the radiant system designer/installer ensures the installation method(s) utilized operate below 100F WDT (water delivery temp) during design-day conditions. It's very disappointing to come across poorly designed radiant systems where the installation method(s) require 195F WDT on DD. Encountered three of those this past winter & in each case, had the designer/installer incorporated different installation methods and/or used available walls and ceilings, the WDT could have been well below 100F on a DD. A modcon becomes an operating efficiency con-job when the WDT seldom is allowed to get below 140F RWT.
Radiant ceilings and radiant walls are highly underrated for both heating and cooling. Then again, radiant in general is underrated. The US is so behind on this awesome technology. So shout out thank you to Bob Mader for this article: http://contractormag.com/blog/radiant-heat-more-efficient-forced-air! If you haven't read it, I recommend it.
And although radiant flooring is great, there are various factors that can inhibit its efficiency so it is beneficial to consider ceilings and walls as well.
If you are doing a retrofit and want to install radiant without costs skyrocketing, consider getting radiant panels installed in your wall or ceiling. It's faster and far less expensive to install because ripping out flooring can be quite an ordeal.
If you have tall rooms, getting radiant installed in your walls would be most beneficial!
There is so much more we could talk about. But until next time I recommend you check out something I have personally experienced and works amazingly well: the Aquatherm Black System, radiant polypropylene piping panels (http://www.aquatherm.com/aquatherm-black-system).
HI Candace, thank you for the opportunity to express ourselves hydronically. :-)
I have radiant walls in my mountain home, and I love them second only to my radiant ceilings... Actually, I love all radiant heating/cooling emitters, but have found that we have become so focused on heated floors that we have seriously lost all contact with the product we are all attempting to deliver, that being radiant comfort. I can honestly blame this on my good friend Richard Trethewey, THAT old plumber on THIS old house. I hold him responsible for kicking off the radiant floor revolution, and have asked him many times what he thought our world would be like is he'd have shown radiant ceilings, or walls, anything but radiant floors on his show many years ago. We agree that it would in fact be a very different world...
Radiant walls, in my opinion, are a missed opportunity on many contractors parts. Don't get me wrong, I LOVE my radiant floor heating system as well, but if we as an industry are to gain a greater percentage of the market, we are going to have to come up with a much more cost effective way of delivering radiant comfort, and I honestly feel walls are one of those proven areas that can. A good contractor will always have a "Good, better and best" option in their comfort bag sales portfolio, and ceilings and walls fall into the good and better category. The application really depends upon the heat source. If the only "heat" available generates relatively low temperatures, like a solar thermal system in the winter, or air source heat pump, then ceiling may be a better choice, only because there is more surface area available to accommodate the lower operating fluid temperatures. If fluid temperatures are higher, like from a fuel fired boiler, then a wall can put out more heat per square foot, which might fill the bill as it pertains to heat loss requirements.
I would strongly suggest that any one interested in doing this contact the RPA for more information at our web site. We have plenty of information to assist our members in developing these alternative radiant comfort systems and would be glad to share them with our members. If you are not yet a member of the RPA, why not? For less than $1.00 per day, you get access to the likes of myself, Dave Yates and many more engaged members.
Sponsored Introduction Continue on to (or wait seconds) ×