Alternative option

Diesel heat­ing- an alter­na­tive to gas. As diesel prices drop, inter­est in boil­ers that use diesel is grow­ing. What are the basic prin­ci­ples for build­ing a heat­ing sys­tem using such fuel and what should you pay atten­tion to when choos­ing a mod­ern diesel boil­er for a coun­try house?

Pho­to 1
De Diet­rich Pho­to 3
De Diet­rich Pho­to 5
wolf Pho­to 7
Vail­lant Pho­to 8
Nova Flori­da

5–7.Diesel boil­er CHU (wolf) with mount­ed burn­er Premio/TH (5), as well as Logano G 125 (Buderus) (6) and iroVIT VKO (Vail­lant) (7) with built-in burn­ers.
eight.Diesel boil­er Lyra C (Nova Flori­da) with built-in burn­er and flow heat exchang­er for hot water sup­ply.

Thus, a liq­uid fuel boil­er is a com­plete­ly com­pet­i­tive device for heat­ing a coun­try house, if there is no main gas, it can­not be bought due to bureau­crat­ic dif­fi­cul­ties, or the use of methane due to a win­ter decrease in pres­sure in the gas pipe is unsafe for boil­er equip­ment. Well, if the sup­ply of a gas main to the site is only planned (say, after 2 years), it is also quite log­i­cal to pur­chase a liq­uid fuel boil­er, but always with a mount­ed (exter­nal) burn­er. After gas is brought to the house, it will be pos­si­ble to clean the fur­nace and chim­ney from soot, install a gas burn­er, recon­fig­ure the automa­tion and start heat­ing. No changes in the pip­ing of the boil­er room (except for con­nect­ing gas and pre­serv­ing the fuel sys­tem) will be required.

How much solar to buy?

Let’s try to cal­cu­late how much diesel fuel a liq­uid fuel boil­er “eats” dur­ing the heat­ing sea­son in a house with an area of ​​200m2. We will pro­ceed from the fact that the heat­ing sea­son lasts 7 months, the boil­er oper­ates at full capac­i­ty for about half of the total time, and in the remain­ing peri­od it is in stand­by mode and does not con­sume diesel fuel. Approx­i­mate­ly for heat­ing 10m2 a well-insu­lat­ed room requires approx­i­mate­ly 1kW pow­er. There­fore, for a house with an area of ​​200m2 need a boil­er with a capac­i­ty of 20kW. If the unit worked con­tin­u­ous­ly, in 1 month it would trans­fer to the heat­ing sys­tem: 20kW24h30 days=four­teen400kWh ther­mal ener­gy. How­ev­er, since we have agreed that the boil­er oper­ates only half of this time, 14400kWh must be divid­ed by 2- total 7200kWh. Mul­ti­ply­ing by 7 months of the heat­ing sea­son, we get 50400kWh for the heat­ing sea­son. To work out 1kWh of ther­mal ener­gy con­sumed approx­i­mate­ly 0.1l solar oil. Thus, the con­sump­tion of diesel fuel dur­ing the heat­ing sea­son can be approx­i­mate­ly 5thou­sandl.

The approx­i­mate con­sump­tion of diesel fuel for the burn­er of any domes­tic boil­er can be cal­cu­lat­ed using the fol­low­ing for­mu­la: fuel con­sump­tion (l / h)= burn­er pow­er (kWh)0.1.

Based on the mate­ri­als of the Azbu­ka Tep­lo com­pa­ny

Before you pay

Today, the cost of a liq­uid fuel boil­er house and a heat­ing sys­tem with a cir­cuit of radi­a­tors and under­floor heat­ing for a coun­try house (includ­ing the cost of equip­ment, its deliv­ery to the site, instal­la­tion and com­mis­sion­ing)- about 370–700thou­sandrub. (based on 1850rub. for 1m2 heat­ed area for build­ings with a footage of 250–500m2). Turnkey boil­er room for a house with an area of ​​250–300m2 with a fuel sup­ply sys­tem and a small “bud­get” fuel stor­age will cost approx­i­mate­ly 250–350thou­sandrub. ATthis amount includes the price of a liq­uid fuel boil­er with a burn­er and an automa­tion sys­tem, which is approx­i­mate­ly 20–35% of the cost of the boil­er house (much depends on the brand, degree of automa­tion andetc.). ATIn any case, it is clear­ly not worth sav­ing on the choice of equip­ment and the design and instal­la­tion orga­ni­za­tion that will select, install and reg­u­lar­ly main­tain it, since the stingy, as you know, pays twice.

A spe­cial­ist design­er is able to choose a boil­er suit­able for heat­ing a coun­try house and all the pip­ing ele­ments even with­out the par­tic­i­pa­tion of the home­own­er (most like­ly he will do so), how­ev­er, it is the own­er who will have to sign the esti­mate, and there­fore make a fun­da­men­tal deci­sion on the con­fig­u­ra­tion of the sys­tem. The lat­ter will be able to do this con­scious­ly only if he has at least super­fi­cial knowl­edge about the sys­tem and its com­po­nents, in par­tic­u­lar about the stor­age of liq­uid fuel, the type of boil­er, burn­er and automa­tion.

Pho­to 11

9.Vito­la 200 paired with Vito­cell 300 (Viess­mann) boil­er.
10–11.BF series boil­ers (Fer­roli): 300 and 500l with built-in ther­mome­ter (10) and 100, 150 and 200l with­out ther­mome­ter (11).

Data for the selec­tion of boil­er room equip­ment

A two-sto­ry coun­try house built from pine tim­ber 150150mm, with­out addi­tion­al insu­la­tion. The heat­ed area is 200m2build­ing heat loss- about 25kW. AThouse has one heat­ing cir­cuit- radi­a­tors. Diesel heat­ing is per­ma­nent, gas sup­ply to the plot is not planned in the near future.
The room for the boil­er room is locat­ed next to the garage, the area- 7m2(32.33m). Instal­la­tion of a boil­er on a boil­er is required.
Water sup­ply: three peo­ple (two adults and one child) per­ma­nent­ly live in the house, who are accus­tomed to using hot water spar­ing­ly.
Refu­el­ing of fuel tanks: vis­its of the fuel tanker to the site should be car­ried out no more than 4 times a year.

Atfuel lake

The boil­er con­sumes diesel fuel from a fuel tank, which can be locat­ed out­side the house (for exam­ple, in an exten­sion, or buried on the site andt.etc.), or in a build­ing heat­ed by it, in a room next to the boil­er room. The own­er will have to reg­u­lar­ly (usu­al­ly not more than 2 times a sea­son) replen­ish it. It is bet­ter to order one or sev­er­al tons at once (depend­ing on the vol­ume of the tank)- the sup­pli­er will send a tanker to you at a con­ve­nient time; the main thing is that the access roads to the loca­tion of the fuel filler neck of the tank are free. The great­est demand among the pop­u­la­tion are tanks for 1000–1500l, how­ev­er, larg­er tanks are also on sale- until 18–20thou­sandl. How­ev­er, it will be pos­si­ble to cre­ate a fair­ly spa­cious con­tain­er from small tanks by com­bin­ing them with each oth­er using the so-called fix pack­ages. There are tanks for 1000l about 10–15thou­sandrub. for 1PCS. For instal­la­tion in the ground, you can buy a tank made of durable rein­forced fiber­glass, for exam­ple, the Labko 10000 mod­el (Labko, Fin­land), which holds 10thou­sandl. When installing on a heat­ed area of ​​a coun­try house, first of all, pay atten­tion to poly­eth­yl­ene tanks (they are made using blown or rotary machines). ATFor sale there are mod­els Trio-Tank, Trio-Sys­tem­tank (Dehoust, Ger­many). There is also a wide range of tanks pro­duced by “Anion” (Europe)- these prod­ucts with a capac­i­ty of up to 2It is easy to car­ry through a stan­dard door­way. BUTa com­bi­na­tion of sev­er­al tanks, com­bined using fixed pack­ages, allows you to cre­ate a larg­er capac­i­ty (sev­er­al tens of tons of diesel fuel). Poly­eth­yl­ene tanks are not only one but and dou­ble-walled, and some­times with gal­va­nized steel sheet cladding, as, for exam­ple, in the DWT mod­el (Roth, Ger­many),- with such a coat­ing, con­tain­ers are excel­lent­ly pro­tect­ed from UV radi­a­tion, durable, prac­ti­cal­ly do not allow dif­fu­sion of fuel and the appear­ance of its smell in the room.

Pho­to 12
Pho­to 13
De Diet­rich
Pho­to 14
“Anion“To orga­nize an unin­ter­rupt­ed sup­ply of fuel from a diesel fuel tank installed in the base­ment of a house or else­where, a fixed pack­age is used to the liq­uid fuel boil­er, which includes a fuel gauge(1), fuel pick­up(2), drain pipe required to vent the tank to the atmos­phere(3), diesel fuel fil­ter with trim ele­ments(4), fuel sys­tem com­po­nents to return the diesel unclaimed by the burn­er back to the tank(5). ATwhen using the TOC-DUO air vent fil­ter(6) the need to use posi­tions(four)and(5) drops out. fuel pipe(7) not includ­ed in the fixed pack­age for con­nect­ing the tank, it is usu­al­ly ordered sep­a­rate­ly, depend­ing on the dis­tance between the tank and the boil­er.

At“out­door” instal­la­tion fuel line “stor­age-burn­er” or “stor­age-inter­me­di­ate fuel tank” is laid below the freez­ing depth of the soil (1.4–2m), since the vis­cos­i­ty of the fuel in frosty weath­er increas­es and it is dif­fi­cult to pump it through the fuel lines. In addi­tion, water, which is almost always present in diesel fuel, can freeze, and then the boil­er will stand up, and, most like­ly, at the most inop­por­tune moment. To avoid this, some­times even spe­cial self-reg­u­lat­ing heat­ing cables are used (tem­per­a­ture- fiftyC) for heat­ing the fuel line.

ATone of the fol­low­ing num­bers, we will dwell in more detail on the design fea­tures of liq­uid fuel boil­ers man­u­fac­tured by the boil­er com­pa­nies Buderus, Vail­lant, Viess­mann (all- Ger­many), De Diet­rich (France), Fer­roli, Fon­di­tal (both- Italy), CTC(Swe­den) andoth­ers

Approximate costs for equipping an oil-fired boiler house *

Name of prod­uct Unit rev. Qty Price includ­ing VAT, rub. Amount includ­ing VAT, rub.
Boil­er Logano G125-25 SE with built-in diesel burn­er PCS. one 93 297 93 297
Tank water heater Logalux LT 135/1 PCS. one 58 698 58 698
Con­trol sys­tem Loga­mat­ic 2107 “RU” PCS. one 30 822 30 822
H/N tank safe­ty group SG160S 3/4 8 bar PCS. one 5289 5289
Boil­er safe­ty group KSS/G1115/G125 PCS. one 5511 5511
Con­nec­tion group G115/G125-LT 135/160/200 PCS. one 14 886 14 886
Expan­sion ves­sel con­nec­tion kit AAS/G124/G115/G125 PCS. one 5289 5289
Fuel tank ST 1000l PCS. one 21 888 21 888
Fix pack­age basic, type G PCS. one 8235 8235
H/L tank con­nec­tion kit AS1 PCS. one 1113 1113
R 3/4 quick cou­pling3/4 PCS. one 1415 1415
Thread­ed con­nec­tion R 1/2G1 (brass) PCS. one 382 382
Pump Logafix BUZ 15 PCS. one 5642 5642
Mount­ing for expan­sion tanks PCS. 2 603 1206
Diaphragm expan­sion tank 35/3 PCS. one 2578 2578
Mem­brane expan­sion tank DHW 12/10 PCS. one 4342 4342
TOTAL 260 590
*- accord­ing to Buderus data at the end of Decem­ber 2008G.

The edi­tors would like to thank the com­pa­nies Buderus, De Diet­rich, Fer­roli, Vail­lant, Viess­mann for their help in prepar­ing the mate­r­i­al and pro­vid­ed pho­tographs.

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