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Questions tagged [floorheating]

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What are the most cost efficient thermostatic valve values for UFH?

The manifolds on each floor have a thermostatic valve. I recall reading somewhere that for the most efficient system that you set these to the lowest acceptable value. I have these set to 35C. The ...
Cheetah's user avatar
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2 answers
503 views

What breaker and wire gauge can I use for my heated floor cable?

I will be installing a SunTouch heated floor for 200 square feet of space. I will wire this at 240V using a double pole breaker. The specs on the website indicate the amperage draw is 10 amps for the ...
geoscience123's user avatar
1 vote
1 answer
86 views

Charring and insulation damage on floor heat wire

I have a floor heat system that was only working intermittently (the thermostat seemed to operate just fine, but the floor only warmed up about 25% of the days it was supposed to). I was planning to ...
jtbandes's user avatar
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1 vote
1 answer
282 views

Nervous About Hydronic Floor Heating

I recently installed electrical floor heating in a bathroom and I can set the temp to 90+ and it gets nice in there on the tile. My plan in our new house is to put radiant hydronic floor heat ...
scri66le's user avatar
2 votes
2 answers
1k views

How do I completely drain and decommission hydronic radiant heating system?

Purchased a home which has a floating floor radiant heating system installed in the basement. I am looking to remove the system as it was poorly designed and installed. I've closed off the fresh water ...
rome's user avatar
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1 answer
142 views

No water in circulator pump? Hydronic heat with electric hot water

I noticed my hydronic floor heat was no longer heating, and the circulator pump was extremely loud. This system was new in 2009 with one valve, pressure tank, and electric boiler replaced in 2021. It ...
Erik's user avatar
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0 answers
26 views

Proper order of additional components?

I have this heat pump unit that has some features but unfortunately, some stuff in it is weak so the manufacturer's guide suggests I boost it a bit from the outside. Therefore I would like to add ...
servant0's user avatar
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1 vote
3 answers
281 views

Do I need insulation under electric floor heating in appartment bathroom?

I live in a large apartment house in Central Europe and I plan to add electric floor heating in my little bathroom for convenience. I own the appartment. The building has central heating units in the ...
yo''s user avatar
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2 votes
2 answers
224 views

Plumbing/piping diagram symbol identification

I have this diagram schematic from the 50-page manual of the heat pump unit and there are symbols that are not explained anywhere in the documentation and I would like to understand them. I tried to ...
servant0's user avatar
  • 417
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1 answer
81 views

Non-return valve with hydraulic separator

To ensure one-directional flow on a closed loop in underfloor heating systems I believe I need to get some non-return valves. Currently, my issue is the exotic nature of the system where I need to ...
servant0's user avatar
  • 417
2 votes
1 answer
121 views

Expansion tank vs. safety valve position

I have this safety valve that comes with a non-return valve in it: I'm wondering if the expansion tank should be installed in x1 or x2 point: Also, should I get a safety valve with max. 8 bar, or ...
servant0's user avatar
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Expansion tank position within thermo-hydraulic separator system

Where should the expansion tank be installed? On the primary side or on the secondary side? Both sides perhaps? x1 ? x2 ? x3 ? or x4 ?
servant0's user avatar
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1 answer
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Proper order of valves in heating pump systems? [closed]

I believe I have a basic understanding of the usage of each component. That being said, I lack knowledge of the proper installation order, especially regarding non-return valves (among others). I have ...
servant0's user avatar
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1 vote
1 answer
2k views

Is it dangerous to have a bathroom floor mat on my heated tile floor?

I'm installing Schluter Ditra Heated Flooring beneath my bathroom tile flooring. I was advised that in doing so, I cannot have a bathroom floor mat because it would cause that area to overheat. Is ...
myermian's user avatar
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5 votes
4 answers
3k views

Can I use electric radiant heating as primary heating?

Our home was build in 2001 and currently has a oil furnace that is at the end of its life. We are looking for a more efficient heating option and stumbled across an electric radiant heating product ...
HomeHelp12's user avatar
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1 answer
1k views

What power supply wire for underfloor heating?

I purchased Thermosoft mats and planning to install it soon. I was wondering what cable to use from the thermostat to the power supply panel? I'm planning to use 240V, 20Amp circuit breaker. From my ...
Grasper's user avatar
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2 answers
239 views

floor heating from the basement ceiling

After I installed my mini split with a heat pump in my city rowhouse in the Midlantic region last winter, I noticed that the hot air from the wall mounted heads were not warming the floor on the first ...
ecco88's user avatar
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1 answer
386 views

How to balance in-floor heating with forced air heat pump

Background: we recently bought a two story house on a slab. It has in-floor heating run by an electric water boiler. It also has forced air run by a Trane heat pump. As we live in Canada its starting ...
Andrew Grothe's user avatar
3 votes
1 answer
241 views

is it okay if heat exchanger's secondary is connected reverse

We bought a house with floor heating, and replaced the old boiler. We installed a Saunier Duval Isofast condens 21 gas burning boiler and an external Zilmet zb190 heat exchanger between the boiler and ...
riskop's user avatar
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0 answers
145 views

Why is my TH132 thermostat display going blank?

I have electric underfloor heating with a TH132 that is not working as the display keeps going blank and appearing to reset. Will replacing this with the TH232 resolve the problem?
Chris Morrison's user avatar
0 votes
1 answer
536 views

How should a plumbing system that contains underfloor heating and a back boiler be designed?

How should a plumbing system that contains underfloor heating and a back boiler on a wood burning stove be designed? I read the an similar answer to the question on another site that said: Back ...
Paul Trotter's user avatar
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2 answers
232 views

Is high temperature an issue with underfloor heating?

I have an underfloor heating installed and it takes significant amount of time (~2 hours) for the floor to heat up when pushing 30-35C hot water into the pipes Is it a problem if I set a much higher ...
adamsfamily's user avatar
1 vote
2 answers
2k views

How to properly pipe a hydronic heating system

Background: I am installing a hydronic radiant floor heating system myself and getting all the information required is a combination of many different websites. It doesn't seem like there is an all-in-...
Jon Tinsman's user avatar
2 votes
1 answer
247 views

Can I put plywood over Schluter radiant heat

I would like to add radiant heat to my kitchen floor. I will be using vinyl flooring (with a floor heat sensor to keep the temperature below 85 degrees F). One option is Schluter radiant heat. In ...
Brian Howden's user avatar
1 vote
0 answers
99 views

Are 8-Zone Wiring Centers Compatible With Smart Thermostats?

I'm looking at various wiring centers for gas boiler heating and I'm wondering if they're compatible with the major smart thermostats, such as Nest, Hive, and Honeywell. Wiring Centers: Reliance:...
Kiril's user avatar
  • 111
2 votes
1 answer
1k views

Floor heating is not as warm as I was expected

I've just moved in a one-room flat which has floor heating. I thought that floor heating would be enough but it turns out to be a disaster. The room is not heating as a normal room with a radiator. I ...
huckfin's user avatar
  • 23
-1 votes
2 answers
101 views

Thinnest screed over the water heating floor

I installed a water heating floor system with 17 mm pipes and studded panels. This is how a studded panel with a pipe looks like: It has 52 mm height (the polystyrene has 30 mm). Now I want to add ...
ROMANIA_engineer's user avatar
0 votes
2 answers
29 views

Floorheating: which material for the floor saves warmth at best?

Is it some sort of wood? Or maybe tereacotta?
J. Doe's user avatar
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1 answer
30 views

Floor heating: is electrical heating better for me? [closed]

We want to lay 40qm of floor heating. It seems to me that electrical heating i.e. thermoelectric elements eadiating warmth is more efficient to install and maintain. Than, say, thin water pipes. ...
J. Doe's user avatar
  • 183
0 votes
1 answer
546 views

In floor heating GFCI thermostat failure?

Fifteen years ago, a contractor installed Easy Floor heating system under tiles in our lower level. There are four GFCI programmable thermostats wired to 240v service. About five months ago, one of ...
Harold's user avatar
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0 answers
92 views

Could I use perlite under floor heating foam panels?

Context: I want to install an in-floor water based heating system in an apartment on a higher floor. As such, there are 2 problems: I cannot afford to have 2 layers of screed (because I need ...
ROMANIA_engineer's user avatar
1 vote
1 answer
96 views

Help identify a mystery brass part along the water line

What's the function of the brass piece along the water supply line. This is the supply line for a hydronic floor heating system. Something is malfunctioning and one of the possibilities is that I have ...
Wynne's user avatar
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1 vote
1 answer
650 views

Ran out of levelling compound when fitting underfloor heating, what are my options?

Hoping for some advice on the underfloor heating project I was doing. Basically when covering the heating mat in a levelling compound, I completely underestimated the amount of compound needed, and ...
Martin's user avatar
  • 125
-1 votes
1 answer
787 views

Is Kerabond T with additive okay for under Ditra Heat?

I'm looking to install porcelain tile over Ditra heat mat in our kitchen. From what I read you need to use a modified thinset for under the ditra mat(over plywood subfloor), and unmodified for over ...
LBJ33's user avatar
  • 206
0 votes
3 answers
225 views

Venting floor heating

I've had sub-floor heating installed a month ago and I think I have a problem with the air in the installation, because there are some rooms that don't reach the desired temperature. The plumbers ...
Alex Dumitru's user avatar
1 vote
1 answer
115 views

Under-floor heating and sub-floor [closed]

I want to replace my existing carpeted living room with a wooden/laminate floor - as part of this project, I was also considering putting under-floor heating in. Currently, the floor consist of ...
Rich S's user avatar
  • 181
0 votes
0 answers
1k views

Will Latex screed prevent heat transfer from under floor heating

We're about to have a wet room floor re-laid after the previous installers installed the gully and under floor heating incorrectly. The base floor is wooden joists with cement board on top to provide ...
Fat Monk's user avatar
  • 183
1 vote
0 answers
135 views

What is the max wattage per sqft for heat floor wires?

I am wanting to use electric floor heating as my primary source of heat for a room we are remodeling. My question is can I use more than 15 watts per sqft and still be within national building code ...
Matt Kriser's user avatar
0 votes
1 answer
111 views

What is the function of this controller and what does different settings do?

I moved into a new house last week and I cant seem to understand what the function of this controller in my fuse box is, it says heating controller on the box but there is no details. Also note that ...
Mukul Goel's user avatar
1 vote
1 answer
359 views

underfloor heating and mold forming

I'll be moving into a new house soon. The house has underfloor heating (wet system) throughout and have been told i can't put down wooden flooring. wood is an insulator, it will cause condensation ...
centerback's user avatar
-1 votes
2 answers
244 views

underfloor heating and solid wood floor

Wet system underfloor heating suppliers seem to insist on tiled floors. I want to use solid timber planks, which have a thermal resistance that stops heat passing through easily. With good ...
archess's user avatar
3 votes
2 answers
8k views

How to block baseboard (water heated)?

I live in an apartment complex where my water baseboard heating is 100% controlled by the complex staff. This year has been particularly tough, as it's been very warm since winter started and even ...
EHorodyski's user avatar
2 votes
1 answer
121 views

Bedrooms aren't being heated as well after new furnace

When my bedroom doors are closed the room is cold. We replaced our furnace about 5-10 years ago and the repair person said we didn't need as big a unit as we had before and every since then it feels ...
user47699's user avatar
0 votes
2 answers
5k views

Can I shorten my in floor heating cable?

Just wiring up an in floor heating thermostat. I have two separate two wires going into my flooring as well as another coming from the panel. I am wondering about the two wires going down to the ...
JollyGoodTime's user avatar