Geothermal heating, in which heat pumps play a major role, is becoming increasingly popular with homeowners and not only with them. The reason: the highest efficiency and minimum operating costs, in addition, environmental friendliness, reliability, safety and longevity. We recommend taking advantage of market offers and purchase heat pumps, the best of which are presented in the article.
The best heat pumps for water heating
NIBE F1245-12 R - class ground-water
Heat pump NIBE F1245-12 R is designed for heating and sanitary ware houses, offices and industrial buildings with a useful area from 200 to 400 m2. It is connected to radiators, convectors, floor heating systems.
It is completed with a boiler (180 l), a compressor (from 5 to 12 kW), a backup electric heater (up to 9 kW) and circulation pumps.
Characteristics: at a temperature of hot water + 50 ° С: COP - 3,4; power consumption / production - 2.5 / 11.2 kW. Voltage 2 × 230 V, t in flow ≤ +70 ° С, refrigerant R407C.
Pros:
- profitability: manual setting of air and water temperature by day and hour; automatic control of the weather; very high efficiency; low operating costs;
- ease of management and control: using a display, computer or smartphone;
- variety of primary heat sources: in addition to soil, underground aquifers and ponds can be used;
- additional features: pool heating, active cooling; recovery of ventilation air;
- heat pumps NIBE F1245-12 R are compatible with a solar collector, a separate boiler, central heating;
- wide range of accessories: electric boilers, buffer tanks, sensors, modules, relays, option cards and mounting brackets;
- availability of single-phase version (for voltage 230 V);
- no need for a special room: low noise (at the level of the refrigerator), relatively compact dimensions (1.8 × 0.6 × 0.6 m), moderate weight (335 kg);
- environmental friendliness, safety, reliability, modern design and durability.
Minuses:
- high cost: price - 508.266 ÷ 977,550 thousand rubles;
- expensive preparatory (excavation) work;
- long-term payback: 10 years.
Danfoss DHP-L Opti Pro + 13 - water-to-water class
The Danfoss DHP-L Opti Pro + 13 heat pump is used for heating and hot water supply. Serves at home (cottages) with an area of 200 ... 400 m2.
Equipped with an external battery (180 liters), a compressor (6200 W), 2 frequency circulation pumps (300 W), 3-stage heating elements (3000/6000/9000 W) and shut-off and control valves. Consuming 2.9 kW, produces 13.0 kW of thermal energy.
COP at a temperature of 45 ° С - 3.4, t at the inlet ≤ + 60 ° С. Refrigerants R410A (for 380 W network) and R407C (for 220 W network).
Pros:
- economical and efficient operation: flexible automatic control - Opti and HGW technologies (heating and hot water supply work simultaneously);
- low operating rates;
- availability of pool heating and cooling rooms;
- comfort control: can be used a computer, tablet or phone;
- high efficiency: due to antifreeze (ethanol + brine) with very low evaporation and freezing temperatures (‒17 ° C);
- large scope of supply: cisterns, safety valves, ball valves, flexible hoses, outdoor temperature sensor;
- Danfoss DHP-L Opti Pro + 13 heat pumps do not need a specially adapted room: relatively light weight (152 kg), small dimensions (1.5 × 0.7 × 0.6 m), low noise (47 dB);
- environmental and explosion, fire safety;
- esthetic appearance and long term of operation.
Minuses:
- expensive preliminary work;
- high price: 566.271-650.212 thousand rubles;
- it takes ± 10 years to pay back.
Viessmann Vitocal 350-A AWHI 351.A10 - air-to-water class
The Viessmann Vitocal 350-A AWHI 351.A10 heat pump is installed for DHW and DHW inside small and medium-sized buildings.
At temperatures of outdoor air / supplied water is +2 ° C / +35 ° C, respectively, consumes / produces 2.9 / 10.6 kW of thermal energy, while the COP coefficient is 3.6. The maximum water inlet t is +65 ° С.
It is completed with a scroll compressor, a fan (110 W), R407C refrigerant, Vitotronic 200 W01B controller. - As well as circulating pumps Grundfos UPS 25-60 and Wilo RS 25 / 6-3.
Pros:
- minimum operating costs: thanks to the RCD diagnostic system in combination with the EEV expansion electronic valve;
- lack of financial investments for earthworks: they are not necessary;
- convenience and ease of use: the presence of a digital controller; remote access control;
- ample opportunities: control (if available) of oil-fuel, gas, including flow-through boilers, as well as pool heating and cooling of rooms;
- wide optional equipment: circulation pumps, safety group, switching valves;
- Viessmann Vitocal 350-A AWHI 351.A10 heat pumps are mounted in almost any convenient place: low noise (48 dB), optimal dimensions (1.9 × 0.9 × 0.9 m), relatively small mass (287 kg);
- high efficiency and cheap operation;
- environmental and fire safety;
- modern design execution and long service life.
Minuses:
- expensive: 451.463-893.469 thousand rubles.
- long payback period: ≈ 10 years.
The best heat pumps for air heating
Mammoth MSR L036HHF - water-air class
The Mammoth MSR L036HHF heat pump consumes 2.6 / 11.7 kW of energy when heating small and medium-sized buildings, and 2.4 / 9.2 kW during cooling.
Equipped with a rotary compressor, fan unit and freon (R22) circuit. Also equipped with a filter and control board with input panel, transformer and relay.
The freon circuit consists of a coaxial heat exchanger, a safety group and 2 valves. The result of the apparatus (220 V) is the injection of the formed warm air in a direct or lateral way.
Pros:
- profitability and energy efficiency: high efficiency due to the properties of freon - the processes of heating and evaporation occur at low temperatures;
- corrosion resistance and noise insulation: the body is made of galvanized steel and covered with fiberglass;
- ease of installation and ease of use: compactness (0.3 × 0.2 m), light weight (104 kg), low noise level (47 dB);
- Mammoth MSR L036HHF heat pumps are simply controlled: using a panel;
- no expensive preparatory work;
- relatively fast payback;
- environmental friendliness, safety and long service life.
Minuses:
- high price: 244.085-302.120 thousand rubles;
- not very aesthetic appearance;
- not always the highest quality assembly.
Mitsubishi Electric MSZ-SF25VE / MUZ-SF25VE - air-to-air class
The heat pump Mitsubishi Electric MSZ-SF25VE / MUZ-SF25VE is a split system designed to service a room with S = 20 m2. When heated, the power consumption / production is 780 W / 3200 W, while cooling - 600 W / 2500 W.
Additional modes: standard ventilation, self-diagnosis of breakdowns, maintaining the temperature on the machine, dehumidification. The device operates from a single-phase network (220 V) using a fan for 5 speeds. Equipped with antioxidant filter and coolant R410A.
Pros:
- economy: high efficiency, the ability to set the mode of operation, energy class A;
- efficiency: a variety of both basic and advanced options;
- practicality: the presence of the function of fixing settings, anti-icing system, adjusting the direction of flow;
- operation comfort: remote control and on / off timer; minimum noise - from 19 to 45 dB;
- power adjustment capability: Mitsubishi Electric MSZ-SF25VE / MUZ-SF25VE heat pumps have an inverter;
- simple installation: small size contributes: indoor unit - 80 × 30 × 20 cm, external air conditioning - 80 × 55 × 29 cm;
- cute design and longevity.
Minuses:
- expensive: 54,900-59,990 thousand rubles;
- Remote: inconvenient size, there is no backlight.
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