DETTSON Suprême Avantage SUP23-A120D12 Electric Furnace | 23 kW - 240V

A 23 kW electric furnace that is easy to live with, controls up front

What the SUP23-A120D12 is

The Dettson Suprême Avantage SUP23-A120D12 is an electric furnace with elements that delivers 23 kW at 240 V, or 17.3 kW at 208 V. Its elements come on one after the other, in sequence and quietly, and a 4-speed, 1/3 HP direct-drive PSC motor sends the warm air through the ducts. At high speed, the factory setting, Dettson publishes an airflow of 1,150 CFM at 0.5 in w.c.

It is a straightforward choice to replace an old furnace in a home that already has ductwork, when the heat-loss calculation confirms a need of this size and the planned air conditioning stays modest. It also suits mobile homes, an installation Dettson approves.

Controls you can see and use

The Avantage series puts a continuous-fan switch, a low/high power switch and a heat-demand light on the front panel. The breakers are also mounted at the front of a painted steel cabinet. Day to day, you can tell at a glance whether the furnace is receiving a call for heat, and you can leave the fan running continuously to circulate the air in the house. The elements can be replaced one by one, which makes service easier years down the road.

Air conditioning and heat pumps: the manufacturer’s rules

The furnace can take an air conditioner or heat pump coil, on the supply or return side, up to 3 tons of cooling. With a heat pump, Dettson does not allow the elements and the heat pump to run at the same time, because this would cause overheating. The thermostat, or a manufacturer accessory, must therefore alternate them, and Dettson provides a K03081 heat pump interface kit. The elements then act as backup heat when the heat pump is no longer enough.

Installation by AirGreen

This version runs on a 3-wire 120–240/208 V supply. With a total current of 103.3 A at 240 V and a 125 A maximum breaker, it needs a dedicated circuit and an electrical panel that can take it. That is the first thing we check during the free on-site estimate.

AirGreen, a family business established in Montreal for more than fifteen years, holds RBQ licence 5645-9605-01 for ventilation, refrigeration and electrical work. Our technicians take care of:

• checking the heating need and the electrical service;
• placing the furnace upflow, downflow or horizontal, depending on the room;
• the electrical connection and the connection to the ducts;
• setting the blower and checking the temperature rise, which Dettson puts between 60 and 80°F at 240 V;
• commissioning and explaining the front-panel controls.

On warranty, Dettson covers parts for 5 years in residential use (1 year in commercial use); labour is not covered by the manufacturer.

Your free estimate

We install in Montreal, Laval, Longueuil, the North Shore and the South Shore. Ask for your free estimate and written quote, and ask about our financing options.