The house is built. Electricity is connected. Winter is coming…
I suggest making a water heating system using an automatic tubular electric heater (TEN) “Ariston”. Reliability and automatic regulation of maximum heating are big advantages of this company’s “tens”.
The simplest option is a boiler with a single-phase heater, similar to a piece of pipe. With horizontal placement of the unit, a circulation pump will be required. With vertical placement of the boiler, the pressure from thermal expansion of the liquid is sufficient for its circulation in the system. After welding the housing, it is required to screw in the heating element, fill with water, and supply electricity using an electrical cable with an electrical plug.
1 – housing; 2 – bushing 1 1/2”; 3 – plug; 4 – nozzle 3/4” (2 pcs.); 5 – leg (2 pcs.); 6 – casing; 7 – casing cover (2 pcs.); 8 – TEN 2.5 kW; 9 – screw M4x10 (2 pcs.); 10 – rubber gasket
Practice has shown that with a two-pipe heating system, even without radiators, a boiler with TENs of 2.5 kW will be enough to heat a house with an area of 30 m2.
Developing the design, I came to the conclusion that for three-phase voltage, a boiler should be made from three automatic TENs of 2.5 kW each. Then it will be possible to heat up to 80 m2 of living space!
1 – wall (2 pcs.); 2 – side wall (2 pcs.); 3 – bottom; 4 – cover; 5 – nozzle 3/4”; 6 – bushing 1 1/2” (3 pcs.); 7 – leg (2 pcs.); 8 – TEN 2.5 kW (3 pcs.)
Connection – one phase to each thermostat.
1 – housing; 2 – bushing; 3 – TEN
Boiler adjustment consists of setting the required temperature on the thermostats (50 °C is acceptable). When it gets colder outside, the temperature can be increased. Just like in a regular household electric water heater.
1 – boiler; 2 – expansion tank; 3 – radiator; 4 – circulation pump; 5 – Mayevsky valve; 6 – radiator valve (straight); 7 – valve; 8 – “American” union 3/4” (3 pcs.); 9 – “American” union (quick-release connection, using union nut) 1 1/2” (2 pcs.); 10 – polypropylene pipe 25; 11 – polypropylene elbow 25; 12 – tee Ø25; 13 – tee with polypropylene thread G3/4”
A boiler with a three-phase heater is obtained by series connection of three single-phase TENs. A compact boiler can be made by welding three pipes together “side by side” or placing them in a single rectangular housing. Options for single-phase and three-phase heater housings are shown in the drawings.
A. MATVEYCHUK
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