CTHS-1148-KIT Frequently Asked Questions

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Can I use a countertop heater if there is a layer of wood between the heater and the countertop?

Yes, but make sure you provide the details about the layer of particle board or plywood when the order is placed to ensure proper performance. It is pretty common to have particle board/plywood underneath stone as a support. Please note that the included surface prep kit should be used on the wood before adhering the heater. 

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When should the included Surface Prep Kit be used?

The peel test strip (included) can be used to evaluate whether the surface of the stone will need the prep coating. Typically this is required for "rough cut" natural stone, which is typically quartz or granite. The Surface Prep Kit can also be used for supporting wood/plywood/particle board. Smooth granite and any stone with a mesh backing will most likely not need the kit. 

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Can the heater be applied to existing countertops?

Yes. If you have any questions about this process, please feel free to give our 24/7 Technical Support a call at 1-800-875-5285.

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How quickly will the countertop heat up?

The stone countertop may take between 1 and 1 1/2 hours to warm up to reach its stable heat level.

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How warm will the countertop surface get?

Our countertop heaters are specifically designed to gently raise the temperature of the heated area an additional 20 to 25 degrees Fahrenheit.

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Can a countertop heating mat be cut or trimmed?

No. Our countertop heating mats can't be cut or trimmed. 

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Can I install the countertop heater between supporting wood (ex. corbels, supporting beams, plywood, etc.) and the countertop?

Yes, but accommodation for the tail location (a 2“x2“ bump) must be made in the wood. Countertop heaters can go between the wood, corbels, support beams, etc., but the tail location must not get compressed between the stone and the supporting wood.

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