Runtal Radiators

Dan_15

I am remodeling 2.5 of my bathrooms down to the studs. Each of the two full baths currently has a cast iron Burnham Radiant radiator inset into the wall. The powder room has a short strip of Baseray. My system is Buderus G215/4 with R2107 and outdoor reset and indoor sensor. I am thinking of replacing the Burnham and Baseray radiators with Runtal radiators and I am wondering what are the considerations I need to think about here. To be honest the Burnham rads are wonderful but they will not have the right look for the new bathrooms. I dont know anything about Runtal except that they claim to be a good replacement for cast iron. Any experience that anyone can share with me about Runtal would be much appreciated. Thanks.

Paul Pollets

Runtal TBW

we install quite a few of these. Special trim is required for the Thermostatic radiator valve and return stop. Rough-in has to be precise with 1/2" CxF drop eared ells used behind the wall, and short chrome nipples connect the TRV valve body and stop to the concealed elbows. We use composite Pex-Al-Pex for distribution to the radiator, such as Uponor's "Multicor".

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Solarstar

Can you get me the part numbers for this configuation as in your picture ..including the TRV part numbers . thanks Paul

Brad White_9

I agree with Paul but would like to add

that all the radiators, both cast iron and Runtal should have TRV's. The radiant effect is similar to cast iron but the mass is certainly not. Constant circulation with OD reset helps a lot. If you use bang-bang control (that is like, so last century....) you will notice the Runtal spaces seem to feel cooler faster. With your set-up and if individually controlled you should be fine.

I have about 75% Runtal in my house and 25% cast iron, all with TRV's and constant circulation.

Dan_15

This is good information, thanks. Should there be any problem using these rads on top of a marble-faced wall? How should they be sized when replacing a CI radiator? Also, on the Runtal website there appear to be some models which have built-in controls, and not piped with TRVs. Is it less costly to purchase the basic model and just add a TRV, or is there any value to the built-in controls?

Thanks

Paul Pollets

Dan

Your supplier should have the Runtal catalogue or view them online at www.runtalnorthamerica.com for rough-in dimensions. There's no second chance with marble, so make sure the rough-in is accurate with 1/8" clearance for holes around the chrome nipples.

The TRV's we use are Danfoss or Oventrop Reverse angle valve bodies,with chrome return union stops. Oventrop has custom chrome trim available.

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GusHerb

myson

there's also simular myson rads from houseneeds.com. http://www.houseneeds.com/shop/atop/heatersbaseboardradiantindex.asp