I agree with the above ....That slab/room perimeter insulation being missing is worrisome as to how intelligent the quote is... the perimeter is the most critical place to insulate a heated room on a slab. Unlike the walls or the ceiling, here is a place with a direct conductive path to the frozen outside. Air is a very poor conductor of heat by comparison.
I don't know what insultarp is, ...but is sounds like some kind of bubble film snake oil...check the details out!
I'm asking for the foam insulation price. Another contractor came in at $31,600, but didn't include hot water, mesh, glycol, or venting. First bid is looking pretty good! Also, #2 has fewer zones.
Radiant heating base bid:
Supplemental heat (KS 2004 toe space heater)
Total radiant w/supplemental heat.
Domestic hot water bid:
Install a Heat Transfer Products Contender model high capacity indirect water heater (or equal) to provide domestic hot water as a function of the heating system. The indirect water heater will have priority over the radiant floor heating system to provide rapid hot water recovery.
50-gallon Superstar Contender unit: $ 2,995.00 _____ 80-gallon Superstar Contender unit: $ 3,595.00 _____
$ 30,650.00 $ 950.00 ======== $ 31,600.00
glycol will provide some limited freeze protection to the system.
Glycol antifreeze option, add to base heating bid: $ 975.00
Under concrete slab insulation for base bid option:
This option includes installing approximately 1,900 sq. ft. of 1" thick R-5 insulation under the radiant heating lower level concrete floor in this residence. Building codes now require this insulation under slab on grade radiant floors.
Insulation option, add to base heating bid: $ 3,195.00
Under concrete slab wire mesh for the base bid option:
Install 6" wire mesh under the slabs of the above-described project. This wire mesh is needed to tie our tubing to. We will provide up to 1,900 sq. ft. of this mesh. If re-bar is used, this wire mesh may not be necessary.
Wire mesh option, add to base heating bid: $ 1,875.00
Gas distribution piping system:
We have not included the gas piping in this bid. We are assuming that the gas piping will be installed by others. We can offer a gas piping bid if desired.
Note: This bid assumes that the majority of this work will be performed in the spring, summer and fall of 2017. If this project slows down and we are working in the winter of 2017, our prices will have to be re-evaluated at that time to account for inflation.
Exclusions:
1 – Line voltage circuits to the mechanical room and possible manifold locations.
2 – Concrete or Gypcrete.
3 – Under concrete slab insulation and wire mesh (unless our mesh and insulation bids
are accepted. 4 – HVAC.
