If the pilot stay lit the gas valve is bad. The ignition module is sensing the pilot is never going off. When you shut of power the pilot signal is lost. Then it lights and works, but if after the cy… (View Post)

I would do radiant gas heaters in the ceiling, it will make it feel warm, Unless you are just doing snow melting then the radiant in the concrete. I don't think you could get the slab warm enough to … (View Post)

Before you get a water heater have your water checked. Make sure your chlorides and PH fit the water parameters in the installation manual. When Reading the new warranty terms for Viessmann it says c… (View Post)

Do you really need all those pumps. Zone valves are much more cost effective in the long run. How many watts are you using just to circulate the hot water. I don’t know how much you would save. How m… (View Post)

Paul, Thank you for all your responses on the wall. I looked up to you as one of the Viessmann pros. Thanks (View Post)