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Home Comfort Bundle: Tankless Water Heater + Radiant Floor Heating System

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Original price $1,475.65 - Original price $2,133.45
Original price
$1,475.65
$1,475.65 - $2,133.45
Current price $1,475.65
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The Ultimate Whole-Home Comfort Bundle combines the powerful Stiebel Eltron Tempra 36 Whole House Electric Tankless Water Heater with the reliable CosyFloor Cable 110V Infloor Heating System to deliver efficient, modern comfort throughout your home. Designed for homeowners seeking energy-efficient heating solutions, this premium bundle provides endless on-demand hot water alongside luxurious radiant floor warmth for bathrooms, kitchens, basements, and living spaces. Ideal for renovations, new construction, or energy-conscious upgrades, this combination offers dependable performance, advanced temperature control, and space-saving electric heating technology.

Features:

  • Includes Stiebel Eltron Tempra 36 36kW electric tankless water heater
  • Includes CosyFloor Cable 110V radiant infloor heating system
  • Endless on-demand hot water for whole-home use
  • Energy-efficient electric heating solutions
  • Space-saving tankless water heater design
  • Quiet and comfortable radiant floor heating
  • Ideal for bathrooms, kitchens, basements, and living areas
  • Advanced temperature stabilization technology
  • Suitable for renovations and new construction projects
  • Reliable comfort and modern home heating performance
$
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Specifications

Tempra Model Item Number239218 / 239225
Phase - 50/60 HzSingle (6) 50/60 Hz
Voltage240 V or 208 V
Wattage36 kW27 kW
Amperage3 x 50 A3 x 44 A
Number & min. recommended 
size of circuit breakers (1) (DP)
3 x 50 A
Number of runs & min. recommended
wire size (2) (copper)
3 x 8/2 AWG
Maximum Flow Rate at Ambient Water Temperature42°F3.9 GPM
52°F4.6 GPM
62°F5.7 GPM
72°F7.5 GPM
Maximum temperature increase 
above ambient water temp
@ 1.50 GPM92 °F92 °F
@ 2.25 GPM92 °F82 °F
@ 3.00 GPM82 °F61 °F
@ 4.50 GPM55 °F41 °F
Min. water flow to activate unit0.77 gpm (2.9 l/min)
Weight19.0 lb (8.6 kg)
Nominal water volume0.39 gal (1.5 l)
Max. inlet water temperature131 °F (55 °C)
DimensionsWidth 165 /8˝ (42.0 cm) x Height 14½˝ (36.9 cm) x Depth 45 /8˝ (11.7 cm)
Minimum pressure30 psi (2 bar)
Working pressure150 psi (10 bar)
Tested to pressure300 psi (20 bar)
Water connections¾˝ NPT
ManufacturerCosyFloor
Product TypeFloor Heating Kit
Amperage (A)Dependent upon kit
Coverage (sqft)Dependent upon kit
Indoor UsageYes
Radiant Heat TypeElectric Heat Only
Voltage (V)110
Warranty (years)Thermostats are covered by a 2-year warranty. Heating cables are covered by a limited lifetime warranty.
Subfloor Preparation
  1. Ensure that suitable backer board is fastened down as per manufacturers specifications.
  2. Ensure that the subfloor does not have flex or movement.
  3. Ensure subfloor is dust free.
Sizing Guide
  1. Measure floor area to be heated & determine square footage of heating cable needed. Order the correct size. Do not install heating cables under any fixed furniture. (eg: vanity units)
  2. Be sure to leave area close to toilet flange free of heating cables (6” radius). It is recommended that heating cables are installed 4” away from all walls.
  3. Pay close attention to heating high traffic areas (in front of shower, tub, toilet room, vanity) and leave areas close to walls, & behind doors  unheated if needed.
  4. Standard spacing of 3” is recommended for most areas. For larger rooms (living rooms etc) the cable spacing can be increased to 4” but is not recommended for high traffic areas. For high heat loss areas, use cable spacing of 2”. (floors over unheated crawl spaces or non-insulated concrete slabs)
Sq Ft Based On Cable Spacing   
3"2"4"AMPSWattsCable Length (Feet)
107131.010642
1510201.617663
2013272.123084
2517332.5275105
3020403.1340126
3523473.8420148
4027535.1560169
5033675.5610210
6040807.3800253
7047937.5820295
80531077.9870336
90601208.5940377
1006713310.71180421
110731479.81080459

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