warm floor temp

Timco

3/4" t&g fir subfloor, 1/4" backer and 1/2" thick tile or so. Control is tekmar 150. Does anyone like the 'pulse' setting feature? It was a warm day, so I am sure it will take longer to heat on a cold one. Got it to 85* max with 150 * water after 6 hrs or so...used wirsbo joist trac & 1/2" wirsbo Hpex. 2 loops, 15-58 running the show.

Tim

Timco

What is a typical temp for a tile floor to achieve. I did a electric WH 6 gal thing and got my kit & bath floors to 83* or so from 59* in about 4 hours or so. Is that a good temp to achieve or do you typically run it a bit hotter? water temp is 150.

Tim

jp_2

tile

whats the floor/subfloor make up? is it evening heated at only 4 hrs?

for my bare feet, tile are warm around 73F, starting. 80's are toasting.....

i'm getting 76F floor, 68F room

answer: whatever feels right!

Bernie Riddle_2

floor temp

I dont have tile but my slab in the basement stays a degree or two above what the stat is set at (72 deg)

If I got it to 83 degrees you probably couldnt stand it!

hr

the best temperature is

the one that feels best to you! Generally a surface temperature, over the plate, of 80- 85 feels right to me, during heating season. Keep the differential tight 2-3 degrees max.

In summer or shoulder seasons I like around 78 surface.

Of course it will depend on where your sensor is located. mine is in the tile mudset.

Keep in mind if the room heat load is low that surface temperature will over heat the room. That's why I prefer the tekmar dual sensor (500 series)stats. it allows you to set "not to exceed" parameters.

hot rod

To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"

jp_2

joist trac

thats interesting timco.

i did a sleeper system, just to the tops of 3/8 pex, then 1/2" durrock.

2" space on each side of pex, mortar packed in place. i have 78F floors with around 90F water temps, 20 gal ele tank.

crawl space under with 8" fiberglass

Rob_34

Was that a 6 gallon heater?

Rob

Rob_34

Was that a 6 gallon heater?

Rob

Timco

yes...6 gal electric. I think it is 5500 watts, but I'm not sure.

Timco

These joist trac are 2-3" between the trac edges and water is 150. Gets to 85 but takes a hour or 2 after the setpoint is satisfied and it drops 3 deg. Almost 300' total 1/2" tube, insulated with R-13 tucked across the joist spaces and foam insul on the pipes not in tracs. Sensor is under a tile in the mud, chipped into the backer.

Tim

Dave_4

thick plates?

timco, how thick are those plates?

got any pictures of the installation?

I order some quik trak once but sent it back cause I wasn't impressed.

Brad White_159

You might check that, Tim

A typical 40 gallon electric heater is about 9 kW (Two 4,500 Watt elements).

I have a 6 gallon unit that is 1,500 Watts. You may have higher Wattage but in a commercial unit possibly.

Timco

This is a single element unit. When I sized it for power last spring, I ran a 10-2 to it and used a single pole 30 for it. Pretty sure it is a higher watt single element unit. I'll get the watts tomorrow when I am there giving the wife the bi-weekly tour....

Tim

Timco

Plates are like 1/8" thick or so...standard wirsbo. Pics tomorrow while I am there. I put the WH / near WH piping together with what I had in the shop. Works like a champ with NO air whatsoever...

Tim