If your house is equipped with a hot water heating system, then with its help you can solve the problem of hot water supply. An indirect heating boiler will help you here, which takes virtually free calories from the heating system for operation, allowing you to seriously save on electricity or gas. How to choose an indirect heating boiler and which 6 of them can be safely called the best, read on.
CONTENT
- 1 What to look for when choosing an indirect heating boiler
- 2 Top best indirect heating boilers
- 3 FAQ
What to look for when choosing an indirect heating boiler
Heat exchanger power. This parameter for indirect heating boilers is very different from a similar characteristic, for example, for electric water heaters. The fact is that an indirect heater uses in its work the heat carrier heated in the heating boiler and, in general, does not produce heat itself, but only absorbs it. Therefore, in the passports of such devices, the maximum power of the heat exchanger is indicated - and the higher it is, the more energy the boiler can usefully digest.
Heat exchanger type. In a heat exchanger, the heat carrier exchanges energy with the heated water. There are two design options:
- tank in tank - in this design, one tank - with a coolant - is immersed in another tank - with heated water, this is a fairly effective, but not the most common scheme;
- a coil is a more common system: here a curved metal tube is immersed in a tank with heated water, through which a hot coolant moves. There can be two coils - this makes it possible to connect the boiler to an alternative energy source.
Volume of the tank. There is never a lot of hot water, so the larger the tank, the better. For the kitchen, a small accumulator of 10-15 liters is enough: with this you can wash your hands and wash the dishes. But for the bathroom, it is better to take a boiler with a tank, based on the calculation of at least 30 (or better - 50) liters per person.
Tank material. The metal tanks of modern boilers are subject to corrosion. Manufacturers are struggling with it, covering the tanks from the inside with various rust-resistant materials. Perhaps the best, albeit one of the most expensive, option is stainless steel. In addition to it, there are various types of enamel, coatings using titanium, silver and other metals. The most budgetary, but also the most short-lived option is glass ceramics, which usually live no longer than 3-5 years, after which it begins to crack. In addition, do not forget about the magnesium anode - the main assistant in the fight against scale inside the tank, which also extends the life of the device.
Features of installation. Everything is simple here: the boilers can be mounted on the wall or on the floor. The second option is usually used for the largest and heaviest structures that walls cannot withstand. But you also need to be careful with wall options: even small heaters cannot be hung on any decorative plasterboard partitions, otherwise such an installation will fail at the same moment as it will filled with water.
Alternative food. No one wants to be left without hot water when there is no need for heating. Therefore, many indirect heating boilers have a combined feed function. Combined water heaters work not only using hot coolant, but also, say, on gas or electricity, and the user himself chooses which option is more convenient and profitable for him in a particular moment. In addition, there are, as mentioned above, models with two coils. We must not forget about indirect heating boilers, in which an electric heating element can be installed after purchase, if such a need suddenly arises.
Top best indirect heating boilers
The best indirect heating boiler 300 liters
1. BAXI Premier Plus 300
An indirect heating storage boiler with a 300 liter tank, capable of fully covering the needs of even a large family for hot water. The heat exchanger of the "coil in coil" system with an area of 0.79 square meters is endowed with a maximum power of 30 kW and is able to heat water up to 65 degrees in just a couple of hours. Overheating protection is provided. The tank is made of stainless steel. It is possible to install a tubular electric heater, which turns this monster at a price of more than 64,000 rubles into a truly universal machine.
Price: ₽ 63 990
BAXI Premier Plus 300
The best wall-mounted indirect heating boiler 200 liters
2. Hajdu STA200C
This storage water heater of an indirect type costs almost half the price of the previous one - 35,000 rubles. However, he also offers a lot for this money. A 200-liter tank protected from corrosion by glass-ceramic is able to keep water hot for a long time. It is protected from scale by an active magnesium anode. A heat exchanger with a maximum power of 30 kW heats water up to 95 degrees quickly and without much difficulty. It is possible to install additional heating elements. A great option even for a large private house.
Price: ₽ 34 970
Hajdu STA200C
Best Indirect Heating Boiler in Stainless Steel
3. Termica AMET 200 INOX
Another indirect heating storage boiler with a 200 liter hydraulic accumulator. It costs literally a couple of thousand more expensive than the previous model - about 32,000 rubles - but it is profitable differs from it by a tank, which is made of stainless steel and is ready to serve its owners for long years. The maximum water heating temperature here is 80 degrees, which, with a heat exchanger power of 30 kW, gives a very fast heating. For protection against scale, a magnesium anode is provided. The heater is of a non-pressure type, therefore, it has only one water intake point.
Price: ₽ 32 000
Termica AMET 200 INOX
The best indirect heating boiler 150 liters
4. Nibe-Biawar Mega W-E150.81
Accumulative boiler of indirect heating with enamelled tank with a volume of 150 liters. Compared to competitors, the above seems small, but, say, for a small family of three, this is more than enough. The maximum water heating temperature is an impressive 95 degrees. Mechanical control is simple and reliable. A standard thermometer, a heating temperature limiter and a protective magnesium anode are provided. The main advantage of this model is very high-quality polystyrene foam insulation, which helps to keep water hot for a long time in stand-alone mode. The issue price is 38,000 rubles.
Price: ₽ 37 920
Nibe-Biawar Mega W-E150.81
The best floor standing indirect heating boiler
5. Drazice OKC 125 NTR
Accumulative water heater of indirect type, intended for installation on the floor. The volume of the enamelled tank is 125 liters, the maximum water heating temperature is 90 degrees. The heat exchanger with an area of 1.45 m2 and a maximum power of 32 kW ensures fast and efficient heating. Provided: overheating protection system, safety valve and protective magnesium anode. With a price of around 25,000 rubles, it is a good inexpensive device for a private house that will provide the whole family with hot water.
Price: ₽ 25 340
Drazice OKC 125 NTR
The best indirect heating boiler 100 liters
6. Hajdu ID 25A
Relatively inexpensive and compact indirect heating boiler. For this device with an enameled tank of 100 liters, the manufacturer asks for less than 15,000 rubles, nevertheless, for a small family of two or three people, its capabilities will be enough with a margin. The maximum water heating temperature here is 95 degrees, which seems an easy task for a heat exchanger with an area of 0.62 square meters and a maximum power of 18.5 kW. Mechanical control, as usual, is reliable and simple. A magnesium anode is installed to protect against scale.
Price: ₽ 14 530
Hajdu ID 25A
FAQ
What is the best way to connect an indirect heating boiler?
To answer this question, you need to have on hand information about the heating system of a particular house. However, in most cases, it is considered best to install the boiler in a parallel circuit. If these words mean nothing to you, then it is better to contact a specialist.
Do I need a pump for an indirect heating boiler?
It all depends on how the heating system in the house is organized. If the pressure in it is not enough to drive water through the boiler heat exchanger, you will have to get an additional pump.
Read also:
The best gas water heaters
Instantaneous water heaters versus storage water heaters: which ones are better?
