Thermalboard Compared to Grooved Plywood

Heatply somehow publishes far better steady state efficiency than Uponor Quik Trak, another bare board product that has the performance advantage over Heatply of an aluminum plate on the underside of the panel. Uponor is a very large and conservative manufacturer with a large engineering staff. Their data is rock solid in our industry. Heatply’s claims do not hold up to scrutiny. Heatply claims performance equal to Thermalboard, a denser board product with aluminum on the surface. These claims simply defy physics and comparative analysis.

Grooved Plywood Has Longer Response Time
Poor steady state efficiency can be expected with plain grooved plywood. Due to the poor conductivity of wood, higher water temperatures are required to meet the heat load of a room than a more efficient product such as Thermalboard. Higher water temperatures required for Heatply directly equate to significantly higher fuel bills…for the life of the building.

Grooved Plywood Stripping
The higher water temperatures required by a plain grooved plywood system can result in hot/cold stripes on the floor on cold days, particularly with tile or stone flooring goods.