- What's the difference between an air-to-water heat pump and a ground-to-water heat pump?
Air-to-water heat pumps won't limit future garden planning because they only draw energy from the outside air. Therefore, these pumps are significantly cheaper to invest in than ground-to-water pumps, eliminating all earthworks and drilling. Air-to-water heat pumps, in conjunction with a bivalent source, usually operate to lower outdoor temperatures than ground-to-water (lower bivalent point).
Ground-to-water heat pumps are very expensive, so they are designed for a lower heating capacity. They can therefore only cover the heat loss of a building up to relatively high outdoor temperatures (e.g. 0 °C), when they switch to a bivalent (alternative) source. This results in a significant degradation of these systems and a substantial reduction in the overall effect. An air-to-water heat pump is a better or, for the same quality of heating system, a cheaper option in terms of investment and operation. Another advantage of the air-to-water heat pump is that the average temperature of the outside air during the heating period is about +3 °C, while the temperature from the ground collector is between 0 °C and -3 °C. This results in a better heating factor of the air-to-water pump. - Does the heat pump heat even at low outdoor temperatures?
Each heat pump is developed and tested for the natural conditions of the Czech Republic. It operates without problems even at -20 °C, but such low temperatures are usually in the morning and for a relatively short period of time. - What is the heating factor?
The heating factor indicates the efficiency of the pump. Basically, it is the ratio of the heating capacity to the power input of the heat pump. In practice, this means that a heat pump with a heating factor of 4 will "produce" four times as much heat as it consumes electricity. - Is an inverter heat pump suitable for heating buildings?
It is originally an air conditioner used as a heat pump, hence the design flaws. The smaller evaporator coil means poorer efficiency of the inverter heat pump and frequent freezing due to the small blade spacing. This is also related to the higher noise level of the powerful fans designed for cooling mode. The whole system is also technically outdated in terms of power consumption. Almost constant operation increases the operating costs by the consumption of the circulator, fans and frequency converter and reduces the lifetime of the pump. The outdoor unit is exposed to the weather for long periods of time, yet cheaper coated sheet metal is used instead of the durable stainless steel housing. - Can a heat pump be used for existing systems with radiators?
The combination of a heat pump with radiators is perfectly common and works reliably. Please contact our experts who will be happy to suggest the best technical solution after a prior inspection of the heating system. - What is the noise level of the outdoor unit?
The quiet design of the outdoor unit allows the heat pump to be installed even in denser outdoor developments. We recommend consulting our experts for the optimal location. The length of the connection between the outdoor unit and the plate heat exchanger for split systems should not exceed 12 m. - What is an equithermal control?
Heat pumps are often equipped with an equithermal heating water temperature controller. This is a device that regulates the heating system based on the outside temperature and provides additional significant savings. - What is the lifetime of a heat pump?
In general, the lifetime of a heat pump depends on the local climate and operating conditions, but equally important is the quality of the installation. The most stressed component is the compressor and fan in the outdoor unit. The manufacturer of the scroll type compressor states a lifetime of 20 years or more. - What is the essential difference between a monoblock heat pump and a split system?
An all-in-one monoblock is designed for easy and quick installation by a skilled craftsman. The tubular heat exchanger design is less susceptible to freezing and subsequent damage in winter. A split heat pump system requires expert installation to optimise maximum performance. It consists of an outdoor unit and a plate heat exchanger located inside the building, which eliminates the possibility of freezing even during a prolonged power outage. We recommend consulting our experts for the optimal use. - Can a heat pump be used to heat domestic hot water (DHW)?
Heat pumps are usually suitable for DHW heating.
New version of the catalogue Mass ventilation of garages!
In the catalogue we present suitable fan types and possible ventilation methods for specific garage buildings.
The design method using Computational Fluid Dynamics (CFD) simulation software is commented on.
The catalogue can be downloaded here.
