How to ensure uninterrupted operation of the heating system during a power outage

Most often, the own­ers of coun­try cot­tages are faced with a pow­er out­age. Short-term pow­er out­ages do not lead to a notice­able decrease in the tem­per­a­ture in the house. In mod­ern build­ings with ther­mal insu­la­tion, stop­ping the heat­ing sys­tem for 3–4 hours due to a pow­er out­age can lead to a decrease in the tem­per­a­ture in the premis­es by 1–2 ° C, which, in gen­er­al, is not crit­i­cal. Longer out­ages will require the use of self-con­tained pow­er sup­plies.

one Install an inverter-battery power system

To pow­er the heat­ing sys­tem, you can use an invert­er-bat­tery pow­er sys­tem of a rel­a­tive­ly small capac­i­ty. So, for exam­ple, the ener­gy con­sump­tion of a gas boil­er with a closed com­bus­tion cham­ber (with an elec­tric fan) and a heat­ing sys­tem cir­cu­la­tion pump will be approx­i­mate­ly 250 W / h (150 W — boil­er, 100 W — pump), a bat­tery with a capac­i­ty of 200 A / h will be able to keep them in work­ing con­di­tion about 6.5 hours. And if you have a non-volatile boil­er (with an atmos­pher­ic burn­er), then only the cir­cu­la­tion pump will con­sume ener­gy, and the bat­tery life will increase sev­er­al times. The cost of such an invert­er sys­tem will be 30–500 $.

2 Install voltage stabilizer

To pro­tect against volt­age surges, the gas boil­er must be equipped with an appro­pri­ate pow­er sup­ply that equal­izes the volt­age and pro­tects the ele­ments of the con­trol board. If such a unit is not avail­able, it is nec­es­sary to pur­chase and install equip­ment that replaces it — a volt­age relay (sta­bi­liz­er) and a surge cur­rent pro­tec­tion device (SPD). If the volt­age relay serves only the line where the boil­er is con­nect­ed, then it can be rel­a­tive­ly low-pow­er (for exam­ple, 300 W if the boil­er pow­er is 250 W), but sen­si­tive (with an accu­ra­cy of 3%).

All this equip­ment is not installed in a room with a gas boil­er; the eas­i­est way is to mount it on a DIN rail in a shield. A set of relays and SPDs will cost 50–60$.

3 Choose a gravity heating system

Ide­al­ly, of course, the best is a com­plete­ly non-volatile sys­tem, with a boil­er with an atmos­pher­ic burn­er and a mechan­i­cal con­trol sys­tem and with the so-called grav­i­ta­tion­al coolant cir­cu­la­tion scheme. The grav­i­ty sys­tem does not require the use of a cir­cu­la­tion pump, the move­ment of the coolant in it occurs due to the pres­sure dif­fer­ence between two columns of liq­uid (heat­ed and cooled). This sys­tem does not need elec­tric­i­ty at all. But the grav­i­ta­tion­al cir­cu­la­tion scheme has its lim­i­ta­tions and design fea­tures. It requires accu­rate hydraulic cal­cu­la­tion and design (lay­ing pipes with a giv­en slope, using pipes of a cer­tain diam­e­ter, installing the boil­er below the lev­el of the heat­ing devices and a num­ber of oth­er points).

Structural diagram of the gravitational heating system

four Select device with remote controller

Mod­ern means of com­mu­ni­ca­tion allow you to con­trol the boil­er mode remote­ly — you will imme­di­ate­ly receive a mes­sage if there are prob­lems with the boil­er.

What­ev­er heat­ing devices you use, in con­di­tions of unsta­ble oper­a­tion of util­i­ty net­works, it is impor­tant to be able to remote­ly con­trol their con­di­tion and per­for­mance. For Bosch, this is the Bosch Con­trol CT100 Inter­net room ther­mo­stat, which allows you to con­trol the boil­er via the Inter­net using the Bosch Con­trol appli­ca­tion avail­able in the App­Store or Google Play. At Aris­ton, remote con­trol is built into Alteas boil­ers and is avail­able for all Aris­ton EVO, X and One series boil­ers using the Cube S Net room tem­per­a­ture sen­sor. Oth­er major man­u­fac­tur­ers have sim­i­lar sys­tems.

Leave a Reply

You May Also Like