Before ordering flooring, give SmartHeat the exact finish, underlay and installation details. The complete floor assembly affects the heating design; a label such as timber or vinyl does not establish compatibility. Use this checklist when choosing a new floor or replacing an existing finish.
1. Confirm the exact product
Ask your flooring supplier for written confirmation that the selected product suits the proposed hydronic heating system and fixing method. Record the product code, thickness, backing or underlay, and timber species where relevant. Keep the current installation instructions and warranty conditions with your project records.
What to confirm before ordering
| Flooring selection | Decision to confirm | Information to share |
|---|---|---|
| Tile or stone | Approval of the finish, adhesive and joint details over the heated base. | Tile or stone specification and proposed installation system. |
| Timber or engineered timber | Approval of the exact product, species and fixing method. | Product code, thickness, species, installation instructions and warranty. |
| Vinyl, hybrid or laminate | Approval of the particular construction and any attached backing. | Product sheet, backing details and required preparation layers. |
| Carpet with underlay | Approval of both products and their combined thermal resistance. | Carpet and underlay product codes, thicknesses and thermal data. |
| Different finishes in one room or zone | How each finish will be accommodated in the heating design. | An annotated plan showing finish boundaries and proposed rugs. |
2. Clarify the temperature limit
Room air, heating water and the finished floor are different temperatures. Ask which temperature the flooring limit refers to, where it should be measured, and how your installation will keep within that limit. A room thermostat reading alone does not confirm the temperature at every layer of the floor.
Give the flooring conditions to SmartHeat before the controls are finalised. Confirm that the room can receive the required heat while the selected floor remains within its approved conditions.
3. Check the finish and underlay together
More insulating floor coverings reduce heat output into the room. Share thermal-resistance data for the finish, underlay, backing and any retained layers so SmartHeat can assess the complete assembly. A change of underlay can matter even when the visible finish stays the same.
Keep this separate from insulation below and around the heated floor, which reduces heat loss away from the room. Choosing a finish that transfers heat readily does not replace the project's insulation design.
4. Agree installation and first heating
Ask the flooring installer to confirm the proposed preparation materials, adhesive and joint details for the selected heated base. Agree who will check and record substrate moisture, approve flooring installation, and coordinate the first heating procedure.
Record the applicable curing, moisture-testing and initial heating instructions before work begins. Use the conditions agreed for your project; do not choose an arbitrary waiting period or temperature ramp.
5. Include the room layout
Mark rugs, large furniture and finish transitions on the plan. Ask SmartHeat and the flooring installer whether these affect the heating design or the floor's approved use. For timber, include any supplier requirements for the room environment and humidity.
6. Send one complete flooring brief
Before selections are finalised, send SmartHeat:
- A room-by-room finish schedule, product sheets and written compatibility confirmation.
- Underlay, backing, fixing method and thermal data for the complete assembly.
- Temperature limits, installation conditions and the proposed first heating procedure.
- A plan showing finish changes, rugs and large furniture.
For a replacement floor, also share the original heating design and any layers being retained. Have the revised assembly assessed before purchasing.
Your completed flooring brief also helps define the heating and installation scope. Explore how SmartHeat plans hydronic floor heating and coordinates the project.
Frequently asked questions
Flooring compatibility questions
Can engineered timber be used?
Some products are suitable. Confirm the exact product, thickness and fixing method with the supplier, then have SmartHeat assess the heating design. Engineered construction alone is not approval.
Can I use carpet with underlay?
Provide the data for both products together. SmartHeat needs to check whether the proposed combination allows enough heat into the room within the agreed operating conditions.
Does the room thermostat protect my flooring?
Confirm how your installed controls measure and limit temperature at the point required for the selected floor. Ask SmartHeat to explain the settings before changing them.
What if I change my flooring selection?
Send the revised product and installation details before ordering. A different finish, backing or underlay may require the heating design and controls to be reassessed.
Does heating approval also cover floor cooling?
Ask SmartHeat to assess cooling separately. Approval for heating does not establish that the floor assembly or installed system is suitable for cooling.
Further reading
These public sources explain general heat-transfer and insulation principles. Product suitability and installation conditions must be confirmed for your project.