THERMO 2000 BTH Ultra 24 Electric Boiler | 24 kW - 240V

24 kW in a 63 lb wall-mounted cabinet: heat for a large home without crowding the mechanical room

For large homes and small buildings

Thermo 2000’s BTH ULTRA 24 delivers 24 kW at 240 V, or 81,888 BTU/h, with four 6 kW elements. Despite that output, it remains a 63 lb wall-mounted boiler holding 2 US gallons of water. That counts when the mechanical room is small or already houses a water heater, an electrical panel and the loop piping.

This size suits a large home heated by radiant floors, radiators or hot water baseboards, a small building whose units share a heating loop, or a commercial space heated through the floor. Thermo 2000 presents the BTH ULTRA for residential, commercial and institutional applications, in new construction as well as replacement.

Controls that adapt and protect

The T2 UltraSmart controller spreads output over four stages based on demand and sets the water temperature with the supplied outdoor sensor, on one of three curves (MIN, STD, MAX). In the shoulder seasons, warm weather shutdown keeps the boiler from running needlessly; Boost mode remains available. Presets by distribution system, a backlit display, pump purge and a 24 V supply for the thermostat and accessories round out the controller.

For safety, the boiler has an automatic limit at 208 °F (98 °C) and a manual limit at 227 °F (108 °C). The supplied 30 psi relief valve protects the loop, whose working pressure must not exceed 30 psi (207 kPa).

What the electrical service must allow

At 240 V single phase, the BTH ULTRA 24 draws 100 A. Thermo 2000 lists a 125 A breaker and copper wire gauge 2 or aluminum gauge 0. In a building supplied at 208 V, output is multiplied by 0.75. These figures often decide the size, and we check them before proposing this boiler.

What AirGreen’s installation covers

After a free on-site estimate, you receive a written quote that sets out the boiler, the electrical circuit and the work on the loop. Our technicians then mount the unit on the wall, connect it through its 1 in female NPT connections (two reducers supplied), make the electrical connection, fill and purge the system, then set the curve and presets. Thermo 2000 covers the tank for 15 years and electrical and mechanical components for 2 years.

AirGreen is a family business established in Montreal for more than fifteen years, holding RBQ licence 5645-9605-01 in ventilation, refrigeration and electrical work.

Let’s discuss your building

Our technicians work in Montreal, Laval, Longueuil, on the North Shore and on the South Shore.

Ask for a free estimate and a written quote for your BTH ULTRA 24; financing is available.