[Greenbuilding] [BULK] Re: "Succesful" Open Hydroinic Heating System

[Lawrence Lile]

In other words you have the same system as I, but with insulation under
the slab.  That nails it, if you don't insulate under the slab (as I
didn't) you might as well just dig a hole and shove a propane pipe in it
and squirt propane directly into the earth, saves all that intermediary
stuff. 

Lawrence Lile, PE, LEED AP
Project Solutions Engineering

-----Original Message-----
From: greenbuilding-bounces at listserv.repp.org
[mailto:greenbuilding-bounces at listserv.repp.org] On Behalf Of Ward
Edwards
Sent: Friday, January 25, 2008 4:44 PM
To: Greenbuilder list
Subject: [BULK] Re: [Greenbuilding] "Succesful" Open Hydroinic Heating
System
Importance: Low

I installed radiant heat in my house in Ontario using an open system and

a Tagaki tankless hot water heater.  The house is super-insulated with 
R40 in the walls and about R50 in the ceiling.  The house is built into 
the side of a hill and uses passive solar design with just under 10% of 
the floor space in south facing windows.  There is 3" of blue foam under

the 3.5" slab.  The pipes (pex-al-pex) are spaced at 1' intervals. I 
have a wood stove for supplemental heat.  The heating system has a 
single manifold and 5 loops all on the same zone.

I have had no problems at all with my system which is controlled by a 
single air thermostat near the center of the house (which is mostly open

concept).  ubscribe