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January 2019

Is air conditioning and heating effective in winter?

Yes! And it produces heat 3-3.5 times more efficiently than electric heaters! Any air conditioner is a heat pump.

But not every heat pump can operate down to -25 or -30 degrees. We will help you choose the right model.

What is the difference between heating and heating with a split system?

Heating and heating are similar concepts, but there is a difference:

Air conditioning heating- this is one of the functions of almost any model, which allows you to heat or preheat a room down to -10/-15 degrees.

Heating by air conditioner- this is the use of a split system as a full-fledged source of thermal energy, the only one or complementary to another system with the ability to operate down to -25/-30 degrees.

The heat function is a normal, familiar mode for modern models. That's just the conversion efficiency electrical energy in thermal conventional systems decreases sharply after zero degrees.

So-called “heat pumps” are the same air conditioners, but with special automation and compressors, as well as factory modifications external unit, which allows, for example, to heat a house with an air conditioner and do it effectively even in severe frosts, when conventional split systems will not even start. Northern Europe It has been heated by air-to-air and air-to-water heat pumps for 30 years.

Schematic diagrams of heating and heating with air conditioning in winter

Air-to-air heat pumps

This is the easiest system to implement. No different from installing an air conditioner. A double compressor, an increased heat exchanger area, a subcooler, modification of the external unit and adjustment of the freon volumetric flow valve make it possible to ensure efficient heating air conditioning in winter.

The name of the scheme for heating a house with an air-to-air conditioner speaks for itself: heat is taken from the outside air and transferred directly to the indoor air. At the same time, the system looks like a regular split system. It’s just more durable and effective compared to the classic options.

Such systems are used in the vast majority of cases as a complete addition to existing heating systems, being real alternative in those country houses, where heating is carried out either by an electric boiler or electric heaters. Moreover, when installing an air-to-air heat pump, you get a full-fledged air conditioning system! After all, in warm time year, it works just as efficiently in cooling mode as a classic inverter split system.

Basic mathematics: if for 1 kW. An electric boiler or air heater produces 1 kW. thermal energy, then the air-to-air heat pump allows you to get 3-3.5 kW. heat. In simple terms: the cost of heating with air conditioning in winter is 3 times less!

Here are some examples of work on installing such systems:

Weigh all the pros (there are simply no cons) and if you decide to test advanced technologies in action (and at the same time install an air conditioner), we will help you with your choice, we will recommend a model that suits your parameters and characteristics of the object. Below we have presented just a few options for the most popular inverter heat pumps (25-35 m2), created specifically for operation in extreme conditions. low temperatures Russian winter.

Model	m 2	Price	Installation	Until t 0
Cooper & Hunter CH-S09FTXLA	25	45000 R	8000 rub.	-25 0 C
Cooper & Hunter CH-S12FTXLA	35	48000 R	8000 rub.
Cooper & Hunter CH-S09FXTTB2S-W	25	67000 R	8000 rub.	-30 0 C
Cooper & Hunter CH-S12FXTTB2S-W	35	71000 R	8000 rub.
Haier AS09CB3HRA/1U09JE8ERA	25	73200 R	5000 rub.	-30 0 C
Haier AS12CB3HRA/1U12JE8ERA	35	77300 R	5000 rub.
Fujitsu ASYG09LMCB/AOYG09LMCBN	25	91400 R	0.0 rub.	-25 0 C
Fujitsu ASYG12LMCB/AOYG12LMCBN	35	98700 R	0.0 rub.
Electrolux EACS/I-09HVI/N3	25	78800 R	6000 rub.	-25 0 C
Electrolux EACS/I-12HVI/N3	35	82500 R	6000 rub.
Mitsubishi Electric MSZ-FH25VE / MUZ-FH25VEHZ	25	105990 RUR	0.0 rub.	-25 0 C
Mitsubishi Electric MSZ-FH35VE / MUZ-FH35VEHZ	35	129990 RUR	0.0 rub.

And don't forget: an air-to-air heat pump works just as efficiently in cooling mode. Two in one: air conditioning in summer and heating in winter! Total benefit.

Air-to-water heat pumps

It is gaining more and more popularity. The most a big problem in the implementation of this scheme is to convince the customer of its functionality. And then everything is simple.

Moreover, the variability of this system is amazing: heating warm floors, and radiators, and fan coils, and provision hot water. Moreover, the system can be integrated into a heating system operating on any type of fuel, complementing it. The external blocks themselves may already have plate heat exchanger and supply heat to the storage tank, they can transfer energy to the hydraulic module, which then transfers it to the storage tank.

The hydraulic module or tank may already be equipped additional element heating water. As a rule, 1.5-3.0 kW., no more: this is a backup option that allows you to either occasionally connect to heat water for heating or hot water during peak consumption loads, or when severe frosts, close to critical values, when the efficiency of even a heat pump drops and a “safety net” is required for a couple of days a year. How often in winter does the temperature drop at least below -25? A couple of days.

Once created and invested, you can provide heating country house air conditioning and provide hot water. And this is the second most cost heating option after mains gas!

There are also ready-made solutions, but in the vast majority of cases the scheme is selected for the specific parameters of the object and technical requirements customer. Below are examples of possible schemes for implementation when choosing an air conditioner for heating in winter:

Heating with air-to-water heat pump

Heating and domestic hot water with an air-to-water heat pump

In all schemes, the external unit works in tandem with a hydraulic unit. It is in this device that thermal energy is transferred from the air conditioner to the coolant, which is already distributed to consumers. But the system implies the ability to scale based on current needs. Heat distribution can be carried out either directly or through a storage tank. Most manufacturers have their own hydraulic modules with built-in storage tank, which in turn can be either with one circuit (heating only) or with two (heating and hot water for the needs of the cottage).

What happens if the outside temperature drops below -25/-30 degrees and the outdoor unit turns off?

Firstly, this happens extremely rarely and not even every year. Secondly, the system implies the presence of built-in heaters: either in the hydromodule or in the storage tank for continuous heating even when the external unit of the heat pump is turned off.

Monoblock heat pump systems have also become widespread. The bottom line is that there is no need to pull the freon line to the hydraulic module: the heat exchanger is already built into the external unit, to which it is enough to connect the forward and return lines of the heating system. Heat (if necessary) using a boiler and connect it to tanks providing hot water supply (DHW) and heating (warm floors, fan coils, radiators).

Below are just a few of the equipment options. professional manufacturers heating systems with heat pumps. Let us repeat once again: the variability is colossal, which can also be supplemented by an automation system that provides control and installation of operating parameters. Manufacturer's recommended prices are shown. When selling an object, significant discounts on equipment are provided!

Air-to-water heat pump. External unit			Heat pump hydronic module
Model	Power	Price	Model	Availability of storage tank	Heating element, kW	Price
CH-HP3.5SWNK/ WT200SW1.5ENK	3.5	161525 R	already included!		2
GRS-C3.8/NbA-K	3.8	91900 R
GRS-C5.0/NbA-K	5.0	96000 R	hydromodule in the external block
PUHZ-SW50VHA external unit	5.0	174380 R	EHST20C-VM2C	with storage tank	2	408040 R
PUHZ-SW75VHA external unit	7.5	207680 R	EHST20C-VM6C	with storage tank	6	419230 R

The Termomir store offers high-quality climate control equipment - air conditioners with heating up to minus 30 °C.

Air conditioning is the most effective method ensure a pleasant indoor climate in summer and even in winter. The most popular and widespread types of air conditioners are split systems. They are the most quiet air conditioners, consist of an outdoor unit and a wall-mounted indoor unit installed in the room. Installation of the outdoor unit is allowed both on the facade of the building and on the loggia/balcony or on the roof.

Available for sale wide choose air conditioners best brands and brands from manufacturing companies from Japan, Korea, China and Europe wholesale and retail at low prices from a warehouse in Moscow. The most affordable air conditioners are Chinese split systems, while Japanese and Korean ones are reliable and of high quality. Discounted air conditioners are on sale from official dealers with a guarantee. We offer delivery and professional installation of air conditioners, incl. free.

Good and inexpensive split systems are presented on this page and in the menu of the official Termomir website. Prepare power calculations, suggest prices and TOP ratings best air conditioners in terms of reliability and quality, our technical specialists will help you choose and order an air conditioner.

Modern air conditioners are equipment that has long become indispensable not only in the summer heat, but also in winter cold. Over the years, such equipment has “learned” not only to cool, but also to heat the air, and if you require just such a function from it, you will have to choose the appropriate equipment especially carefully. And if the purchased unit turns out to be capable of heating the air in your room, this will allow you to have a comfortable climate in your home, regardless of the weather outside the windows.

Why can air conditioners heat a room?

It’s simple: such units (they are called inverter units) are equipped with heat pumps that can be turned on in the “heat” mode and pump hot air. Of course, such an air conditioner will have a higher price (by about $100-200), but it is worth it: in spring and autumn, as well as in not too frosty winters, the air conditioner will provide the desired warmth, and you will no longer depend on central heating.

As a rule, air conditioners with a similar function can be found in brands such as McQuay, Daikin, Mitsubishi Electric or Panasonic. And if you don’t know which model to choose, just pay attention to split systems - most often they are the ones who are ready to give their owners life-giving warmth when their cold is no longer in demand. And from such warmth you will receive a lot of important benefits.

Heating with air conditioning is beneficial!

By far the easiest way to heat a room in the spring or fall is to use a fan heater or other heater. However, such options are considered less profitable: while a heater produces 1 kilowatt of energy, an air conditioner with a “heat-cold” function produces 3-5, and, therefore, the price of energy consumption will decrease by almost three times. In this case, the air conditioner will spend most of its energy not on generating precious heat, but on “delivering” it to the heated room, which will once again have a positive impact on savings.

In general, the operation of an air conditioner that heats a room is carried out according to the following principle:

• The refrigerant is gradually heated in the outdoor unit, which is then pumped into the indoor unit using a compressor, entering it through a pipeline.
• The heated air is automatically directed downwards using air dampers, powerful fan and blinds of the indoor unit.
• In the room warm air, as it should be, rises up, mixing with the cold.

This allows the air conditioner to operate using the natural laws of nature, saving its own effort and thus reducing energy consumption. At the same time, heating by air conditioning in this case is also more comfortable for people in the room - due to the lower temperature of the heat exchanger located in indoor unit, the unit dries the air more efficiently than a conventional fan heater, and does not spend a single extra kilowatt on it.

When is heating with air conditioning not appropriate?

Of course, such situations do occur, and it is better to know them in advance so as not to harm either yourself or the equipment. The most important limitation is extreme cold. In severe winter frosts, when the temperature drops to -10-15 degrees, it is not recommended to turn on the air conditioner at all, because its performance will still be low (at least 2 times lower than in normal times). In addition, at low temperatures, the oil in the unit thickens greatly and loses its properties, as a result of which the compressor wears out much faster and may suddenly break without “breaking” the frozen oil. Also, at negative temperatures, the drain hole in the drain hose of the air conditioner may freeze, in which case all the condensation will flow into the room as soon as the air conditioner switches to cooling mode. Considering this, standard models It is better not to turn on air conditioners when the temperature drops to -5-7 degrees. And if in such weather you absolutely need additional heating, you should pay attention to other equipment.

Modern air conditioners, which use the latest compressors, can cope with heating the premises even in very severe frosts. They work even when the thermometer drops to -20 degrees. The following functions of the unit can be achieved:

• replacing the traditional R22 refrigerant with the more modern, ozone-friendly R410A,
• creating conditions for artificial heating of the oil in the unit, which prevents it from thickening and prolongs the life of the compressor,
• having improved the design of the compressor itself, which can freely operate on R410A,
• by installing a heater (power up to 20 W), which allows the condensate not to freeze until it has completely flowed out of the hose.

At the same time, the latest air conditioners are configured in such a way that the unit can not fail even with a sharp and one-time drop in temperature - for example, to -35 degrees. Even if this happens in the absence of the owners, and they do not have time to turn off the equipment, nothing serious will happen to it. To achieve this, manufacturers have equipped their equipment with microprocessor control blocking systems, which simply turn off the unit as soon as the temperature exceeds the permissible limit. And yet, if the temperature often drops below -20, it is better not to use even such advanced air conditioners for heating, otherwise it will quickly damage them.

Heat pump air conditioner: what you need to know?

This unit is a special split system, specially designed for heating rooms. It can also cool them or supply them with hot water. This equipment option is becoming increasingly popular, but it will only be appropriate where there is no central heating - that is, in cottage villages and small apartment buildings located in cold regions.

Such equipment works very simple principle. Outdoor unit(compressor-condenser) operates on the principle of an air-freon heat pump, extracting free heat from atmospheric air. Next, its temperature increases, after which, through freon, the heated air is transferred to the internal evaporator heat exchanger. The movement is carried out through the pipeline circuit. The evaporator in the indoor unit operates on the “freon - water” principle and has a built-in hydraulic module. The unit of this module is a water heating circuit that can be connected to any standard water radiators, underfloor heating systems or fan coil units. The complex also has an additional water heater indirect heating, which is connected to the heating circuit of the heat pump and allows all year round provide an entire house or apartment with hot water intended for domestic needs.

Moreover, in any situation, such a technique is capable of:

These advantages make the use of a complex with a heat pump a real salvation for those who cannot otherwise obtain heat or hot water. And it is precisely these unique functions that make air conditioners also excellent “heaters” that will help create an ideal climate at any time of the year and in any room, saving both the efforts of the owners and their family budget.