THERMO 2000 BTH Ultra XL BTHULTXL24048 Commercial Electric Boiler | 48 kW - 240V

48 kW on single phase: the largest BTH ULTRA XL on 240 V

First, the electrical question

At 48 kW on 240 V single phase, the BTH ULTRA XL draws 200 A on its own, per Thermo 2000. Before even talking about heating, you need to know whether the building’s electrical service can carry that load on top of the lighting, ventilation and other equipment. The manufacturer gives a maximum supply wire size of 350 MCM; circuit protection is set according to the electrical code. If the building has three-phase power, the BTH ULTRA XL also comes in 480 V and 600 V.

What the 48 kW BTH ULTRA XL is

It is the largest 240 V model in Thermo 2000’s commercial line, which the specification document calls the BTH ULTRA XL 2.0. Eight 6 kW elements, controlled in four stages, produce 163,776 BTU/h according to the manufacturer. The boiler, made of steel and insulated with 2 in fibreglass, holds 8 US gal (30 L) of water, weighs 180 lb and measures 23 3/8 x 12 3/4 x 23 1/4 in (W x D x H). It mounts on the wall or on the floor on an optional stand.

It suits buildings heated by a hot-water loop that only have a single-phase service: places of worship, community halls, schools, good-sized apartment buildings, businesses. Thermo 2000 also presents it as backup for a heat pump or a geothermal system.

A parish hall on the South Shore, for example

A parish hall on the South Shore, heated by large radiators, is only used a few days a week. The T2 UltraSmart controller proves useful there: it modulates output based on demand, sets the water temperature with the supplied outdoor sensor and stops heating in mild weather, within a 0 to 105 °F range. Boost mode and pump purge are also among its functions. For safety, the manufacturer provides the low water cut-off with test button and indicator lights, the 30 psi (ASME) relief valve, two limit controls and fuses.

What our installation includes

We start with a free on-site estimate focused on the electrical service, the loop and the emitters. The written quote specifies the boiler, the floor stand where applicable, the circulator and the expansion tank, which are not among the supplied items. Our technicians then install the boiler, connect the piping in 1 1/2 in NPT and the electrical circuit, fill and purge the loop, then set up the controller. Thermo 2000 covers the tank for 10 years (limited warranty, closed-loop heating) and the electrical and mechanical components for 2 years (parts and accessories).

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.

Ask for an estimate

In Montreal, Laval, Longueuil, on the North Shore and on the South Shore, we come out at no charge and provide a written quote. Financing is available.