What you need to know about radiators: terms and definitions
The arrangement of a private house heating system is a troublesome process, but necessary, and the selection of heating radiators from a huge array of offers sometimes even carries on, however, like any unexpected purchase. It remains only to understand the specifics of the issue and find your own version.
Let's start with a simple one. The heating system, in contrast to the water supply system, is a closed loop. The source of heat( electric boiler for heating), pumping equipment, pipelines for multiple forced circulation, end or flow heating devices - in fact, that's all the structural elements of the network. We will leave the layout of the scheme to specialists, we will discuss only the characteristics of those units that will eventually warm us up.
What to look for when choosing a water heating radiator in a private house:
- center distance : is determined from the midpoints of the upper and lower collector( horizontal tube) of the radiator and specifies the vertical size of the device;better fit in the interior of low-power appliances;
- heat dissipation : usually in the data sheet is reduced to one section or given to the entire device;the spread of the values is quite wide( from 90 to 220 W), but the value can be considered to be 170-180;
- depth : one more overall size, which mainly affects the design of the room;removal of heating equipment 120 mm from the wall - a clear aesthetic nonsense:
- working pressure : most heaters are designed to work in the urban central heating system( 16-20 atmospheres), so in an autonomous heating system of a private house( 4-10 atm) radiatorsany type of service with a warranty;
- pressure test : if your pumping equipment can be switched to hydraulic shock during purging and cleaning of heat conducting channels, the pressure is unlikely to exceed the regulatory limits of 20-30 atmospheres, and it can withstand all modern units.
Radiators for a private house: materials and construction
Absolute freedom of choice, restrictions only on the specific characteristics of the heating devices, which we have already considered separately.
- Aluminum. Ease of installation, high thermal conductivity, low thermal inertia( quickly heated and just as quickly cool), corrosion resistance and mechanical strength leave much to be desired, the average price for the group.
- Cast iron. Minimal convective heat transfer( for comfortable warming up of rooms, an increased operating temperature of the coolant will be required), high corrosion and mechanical resistance. In retro-performance, such radiators fit organically into the interior of a private house, although the price bites them.
- Bimetallic. The classical version is an aluminum strapping of a welded tubular steel structure. Successfully combine convection and radiant heat exchange with air, with a sufficient area of the heat transfer surface and the correct location at the moment are the best radiators for private homes.
We did not find any special restrictions on the type of equipment when choosing design solutions for an autonomous heating system, so we will limit ourselves to a short reference:
- standard wall sectional radiators: installation site arbitrary in wiring, connection( top, bottom, side) - according to the passport;
- vertical : niches, window openings, rest areas;
- outdoor : low windows( for creating a heat curtain);in office space.
It is quite appropriate in the summer conditions will be even electric radiators and convectors, if their economic efficiency, taking into account the costs of future periods, is pre-calculated.
How to calculate the radiator for a house
The task is simple: to heat a room with an area( S = 18 m 2) to a comfortable temperature. It is empirically proven that one square should account for 100 watts of heat output of heaters, i.e.in our case, a total of 1.8 kW.We collect from different types and choose what is better and cheaper. According to our calculations, we will need:
- 11 sections of a simple cast-iron battery MC-140 at 320 rubles = 3520;
- 8-sectional aluminum radiator for the price of 5500 - 6000;
- 10 elements of the bimetallic device 4800-5200.
If you do not take into account the overall dimensions, weight and design, the first option seems preferable, however, when selecting the best radiator, always remember that you with him live side by side and admire one another for many years.
