picts of your in-floor heat set ups.

[Tracs]

I just got my system up and running. 40x60 thickened edge slab. 9 loops. 18kw boiler. Concrete contractor laid the pipe. I installed the boiler, manifold, piping, and commissioned the system.

 

[lovebohn]

What boiler or other parts did you use? Cost in heating?

 

[Tracs]

What boiler or other parts did you use? Cost in heating?

If you are asking me,

Thermo2000 BTH ultra 18kw boiler, Calefactio 1" air separator, Calefactio 4.8 gal. Expansion tank, Bell & Gossett NRF-25 circulator pump, 10 loop A-BST 1" pex manifold. Fired it up 3 days ago, no idea what it will cost to run.

 

[lovebohn]

Worded it wrong, more cost in heating equipment. The quotes have been really high from my local HVAC. All my loops are run and ready to go.

 

[Tracs]

Worded it wrong, more cost in heating equipment. The quotes have been really high from my local HVAC. All my loops are run and ready to go.

About $3,000 covers everything on the wall, boiler, piping, manifold, pump, expansion tank, & air separator, not including the loops. Out of curiosity, what would a HVAC contractor be charging to do similar?

 

[lovebohn]

First quote was $11k. I might have to do a space heater

 

[E.rodz]

I just got my system up and running. 40x60 thickened edge slab. 9 loops. 18kw boiler. Concrete contractor laid the pipe. I installed the boiler, manifold, piping, and commissioned the system.

Nice work ! Let us know how everything is working!

 

[Modoc]

Finished the install and commissioning of my 36x48 shop with single zone, six loops. Has worked flawlessly since starting on 09/14/25. I used a Navien nhb80 Boiler with natural gas.

 

[E.rodz]

Let's see some more systems!

 

[TurnipTruck]

Here is some of what I came up with when remodeling this neglected lake house back in 2016:

Winter was late that year, luckily, so I got an extra month to reroof and prep for siding while teaching myself hydronics and threading tubes among joist bays while working full time.
It starts with a wall hung K2 with outdoor reset feeding a salvaged laboratory test vessel adapted to become a hydraulic separator and hooked to in/out manifolds with three full-temperature zones and three reduced temperature zones for the staple-up radiators.
I tried to make it look like I knew what I was doing, but I am sure there are fundamental flaws. Hopefully they are minor.




*I know the **** trap is on the wrong side of the valve.

 

[lovebohn]

Hydro Smart from Menards.

 

[Overboost44]

Would love some more pics, too.

Can anyone tell me how much wall space a single zone 3 circuit system (900 sq ft) would take up? Electric boiler. I can reach out to Blue Ridge or someone as an option but I don't know who I will buy the system from. Right now, I just want to be prepared to get the lines in the slab. The picture above appears to be 6-7' of width.

 

[andyvh1959]

So if I use a small water heater or Hydrosmart boiler, I'd still need a integrator panel (pump, expansion tank, valves etc). But it seems a small electric water heater would cost far less than $1790 for a Hydrosmart boiler.

I've found a small 30 gallon, dual element 4500 watt water heater available at Home Depot for less than $700, $1000 less than the Hydrosmart boiler.