Heating Help

zoning single pipe steam

@ June 1, 2011 9:55 AM in zoning single pipe steam

Thanks for you quick response;  the radiators already have the vent controls and apparently have not been effective in the temperature regulation.  Of course this is based on accounts from very non-technical owners.  Could TRV's be used in combination with the vent valves?  I guess my question is how does the TRV vary from a manual valve in its effect on the steam flow? 

zoning single pipe steam

@ May 27, 2011 9:30 AM in zoning single pipe steam

I have a customer with a single pipe steam system; they want zoning.  Looking at the honeywell V110 valve they recommend this valve for two pipe.  The current system has manual valves on it. What's the difference?

Tekcoil

@ September 17, 2010 1:13 PM in Tekcoil

Just saw a product called Tekcoil, a Pex/Al/pex tube with a fitting similar to Kitec.  Supposedly listed for heating and potable; anybody got any experience with this?

radon mitigation

@ May 12, 2010 5:24 PM in radon mitigation

Has anyone had experience with air to air heat exchangers used for radon mitigation in a residential application, specifically configuration of ductwork.? 

endurance anti-condensing valve

@ April 23, 2010 6:32 PM in endurance anti-condensing valve

questions about endurance anti-condensing valve

endurance domestic hot water problem

@ April 23, 2010 6:25 PM in endurance domestic hot water problem

I have an issue with lack of dom. hot water when space heat is on

deteriorated copper

@ October 6, 2009 10:21 PM in deteriorated copper

I have just discovered deteriorated .5" L soft copper in a 30 year old radiant system.  As far as I have discovered, there is only 3' of tubing at a 180 bend that has cracked in a spiral pattern along the tubing.  As I bent the tubing it broke easily.  Moving away from the bend in both directions I bent the tubing and it seemed normal: it would not break until kinked and repeatedly bent.  Inspecting the interior of the tubing there is no sign of corrosion. Anybody seen anything like this?  Is this tubing work-hardened at only one point or is there some metallurgical explanation for this? 


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