Radiant Heat & Thermostat

Radiant Heat & Thermostat

PostBy: Kungur On: Sun Feb 24, 2013 6:37 pm

Well I have been inquiring about a few upgraeds to my system. A KAA-2 with radiant floor heat. In a previuos post. Today I would kie ti=o seek advice about thermostats. Much of my system was reviewed by a hvac guy and for the most part it functions well. But when I did the install I used a regular thermostat. I would appreciate hearing from anyone, who has radiant floor heat, about the idea of switching to a thermostat that is for this type of heat. How would it help,where would I place a sensor,etc..
Thanks!
Kungur
 
Stove/Furnace Make: Keystoker
Stove/Furnace Model: K-2

Re: Radiant Heat & Thermostat

PostBy: Kungur On: Wed Feb 27, 2013 9:57 am

No One?
Kungur
 
Stove/Furnace Make: Keystoker
Stove/Furnace Model: K-2

Re: Radiant Heat & Thermostat

PostBy: McGiever On: Wed Feb 27, 2013 9:11 pm

sensor installation...

http://s3.pexsupply.com/product_files/079-install.pdf

http://www.youtube.com/watch?v=-UM8xFhMD3s

You may not get many replies,you may be reduced to a discussion w/ a sales rep. at Pex Supply.
McGiever
 
Stoker Coal Boiler: AXEMAN-ANDERSON 130 "1959"
Hot Air Coal Stoker Stove: HARMAN MAGNUM
Hand Fed Coal Stove: RADIANT HOME AIR BLAST
Baseburners & Antiques: OUR GLENWOOD 111 BASEBURNER "1908"
Coal Size/Type: PEA / ANTHRACITE, NUT-STOVE / ANTHRACITE
Other Heating: Ground Source Heat Pump
Stove/Furnace Make: Hydro Heat /Mega Tek


Re: Radiant Heat & Thermostat

PostBy: CoalUserWannabe On: Wed Feb 27, 2013 9:25 pm

I have been to a place in the Poconos where radiant heat is installed, and the rooms ( total 12 ) are always nice and toasty, I was told it's running on a keystoker coal boiler, the floor loop is kept at around 110-115 using an injection pump "I have no clue what that is " since my girl friend and I were just visiting somebody there and having few drinks.
CoalUserWannabe
 
Stove/Furnace Make: Alaska
Stove/Furnace Model: Kodiak

Re: Radiant Heat & Thermostat

PostBy: Rob R. On: Wed Feb 27, 2013 9:29 pm

They make thermostats for radiant slabs that do a better job of keeping the temperature stable. The thermostat will "pulse" the circulator off and on to give things a chance to react...and the boiler time to catch its breath. I have a Uponor thermostat made for radiant heat leftover from my last job, it might be a good fit for your setup.
Rob R.
 
Stoker Coal Boiler: EFM DF520
Hand Fed Coal Stove: Hitzer 50-93
Other Heating: Dad's 1953 EFM Highboy

Re: Radiant Heat & Thermostat

PostBy: Kungur On: Fri Mar 01, 2013 9:36 am

Thanks for your replies. Rob I will PM you.
Kungur
 
Stove/Furnace Make: Keystoker
Stove/Furnace Model: K-2

Re: Radiant Heat & Thermostat

PostBy: Freddy On: Fri Mar 01, 2013 11:42 am

Weird.... I thought I posted an answer here the day you asked 'No one?".

I'll try again....


If you have 100% radiant then a regular ol' thermostat will work just fine. But, if you have part radiant & part baseboard and an open area, the baseboard will heat faster and tell the radiant thermostat that it's satisfied. That's when a "slab-stat" comes in. A slab stat has a sensor that's IN the floor. The idea is is you keep the floor at 80 or 81 then the air stays about 69 or 70, and you will be very comfy. The water temp to keep the floor at 80 varies.... 95 or 100 will keep concrete or gypcrete up there, but wood with carpet you may be needing water temps of 140 or higher.
Freddy
 
Stoker Coal Boiler: Axeman Anderson 130 (pea)
Hot Air Coal Stoker Stove: Reading piece o' junk in the barn (rice)
Coal Size/Type: Pea size, Superior, deep mined

Re: Radiant Heat & Thermostat

PostBy: Sting On: Fri Mar 01, 2013 1:07 pm

all this electronic and digital control is wonderful -- until it don't work

suggestion -- go back and read Pumping Away
Study the part about piping temperature reducing loops

but thats just an idea - your mileage may vary
Sting
 
Other Heating: BurnHAM=NG-gas

Re: Radiant Heat & Thermostat

PostBy: gizmo On: Fri Mar 01, 2013 1:21 pm

I have all different kinds of thermostats.The
only thing that seems to matter in my set up
is the differential setting.I can't stand more than
1 Degree.It takes to long to recover if it gets
way out there.
gizmo
 
Stoker Coal Boiler: AA-130
Coal Size/Type: Anthracite/Pea
Other Heating: NONE