CONFORTO Lowboy KLE-02-G015-03 Electric Furnace | 15 kW - 240V

A 15 kW Lowboy furnace, protected against power surges and brownouts

Replacing a Lowboy, in a 15 kW version

When a Lowboy furnace reaches the end of its life, the simplest route is often to replace it with a unit of the same upflow format, connected to the same ducts. The Conforto KLE-02-G015-03 fills that role for homes that need more than a 10 kW model. It produces 15 kW, or 51,216 BTU/h at 240 V, with three 5 kW elements: the first stage brings in 10 kW, the second raises output to 15 kW. A 1/3 HP three-speed PSC motor distributes the air.

It is found in single-family houses, but also in plex units in Montreal where each unit has its own furnace and its own ductwork.

What protects the unit and eases service

The 2nd generation of Conforto furnaces focuses on a sturdy electrical section. The elements are staged and controlled by heavy-duty relays. Redundant high limits watch the temperature, and the control board includes surge and brownout protection, with a replaceable fuse. If something goes wrong, LED diagnostics tell the technician where to start, and the programmable DIP switches let the operation be adapted to the installation.

The cabinet is fully insulated, and the 24 VAC connection accepts accessories such as a central humidifier.

What to plan at the panel and on the floor

Conforto calls for a dedicated 240 V single-phase circuit with an 85 A minimum circuit ampacity, a breaker of no more than 90 A and 4 AWG wire. On the floor, the cabinet takes 21 1/2 in of width by 44 in of depth, for 34 1/2 in of height, and it installs in upflow only. We check both points, the panel and the space, during the estimate.

For summer, the furnace accepts an air conditioner or heat pump coil of up to 3 tons, set through DIP switch 3. Sold alone, it is not a heat pump and does not qualify for the LogisVert grant.

A complete installation by AirGreen

AirGreen is a family business established in Montreal for more than fifteen years, holding RBQ licence 5645-9605-01 for ventilation, refrigeration and electrical work. We set the furnace, connect it to the ducts, run the 240 V circuit and hook up the thermostat. At commissioning, we measure the temperature rise, which Conforto puts between 45 and 60 °F for this model, and set the motor speed accordingly.

We serve Montreal, Laval, Longueuil, the North Shore and the South Shore.

To replace your Lowboy with a unit of the same format, ask for a free estimate: a written quote, clear work, and financing offered by AirGreen to spread the payments.