For Centrally Heated ApartmentsNatural Gas and Diesel Fired, Fire-Tube Central Heating Boiler YT-3G
A three-pass central system heating boiler, fired with natural gas or diesel.
- 174–931 kW
- 10 capacities
- With burner
- Three-pass
- TSE · CE
Prices depend on capacity and options; fill in the enquiry form and we will send a quotation the same day.
Features
Three-pass design
Technical features from the catalogue and user manual.
- The design lets the user control the heat level with ease.
- The three-pass design lengthens the flue gas path, lowers flue gas temperature and saves fuel.
- Every boiler is tested at 1.5 times its operating pressure.
- Heat transfer is spread evenly across all surfaces, which extends boiler life.
- It can burn natural gas, fuel oil, diesel and LPG.
- An optional cylinder or heat exchanger can be added to produce domestic hot water.
Models
YT-3G models
Model code: series + capacity, for example YT-3G-400. The circulation pump and burner are not included.
YT-3G
Single phase
Models 150 – 250 come with a single-phase electrical panel.
YT-3G
Three phase
Models 300 – 800 come with a three-phase electrical panel.
Technical data
Dimensions and technical table
The table scrolls horizontally; the values match the catalogue. Technical data may change as products are developed.
| Model | Unit | YT-3G-150 | YT-3G-200 | YT-3G-250 | YT-3G-300 | YT-3G-350 | YT-3G-400 | YT-3G-500 | YT-3G-600 | YT-3G-700 | YT-3G-800 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Width (A) | mm | 1135 | 1135 | 1135 | 1135 | 1135 | 1135 | 1185 | 1185 | 1235 | 1235 |
| Depth (L) | mm | 1710 | 1810 | 2020 | 2070 | 2170 | 2270 | 2320 | 2420 | 2965 | 2895 |
| Boiler height (H) | mm | 1515 | 1515 | 1690 | 1690 | 1690 | 1690 | 1790 | 1890 | 2305 | 2305 |
| Flue diameter | Ø mm | 190 | 190 | 300 | 300 | 350 | 350 | 400 | 400 | 450 | 450 |
| Boiler flow / return | Ø inch | 2 | 3 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | 6 |
| Expansion tank flow / return | Ø inch | 1 | 1 | 1 ¼ | 1 ¼ | 1 ¼ | 1 ¼ | 1 ¼ | 1 ¼ | 1½ | 1½ |
| Fill – drain | Ø inch | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 | 3/4 |
| Model | Unit | YT-3G-150 | YT-3G-200 | YT-3G-250 | YT-3G-300 | YT-3G-350 | YT-3G-400 | YT-3G-500 | YT-3G-600 | YT-3G-700 | YT-3G-800 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Fuel type | Natural gas – diesel | Natural gas – diesel | Natural gas – diesel | Natural gas – diesel | Natural gas – diesel | Natural gas – diesel | Natural gas – diesel | Natural gas – diesel | Natural gas – diesel | Natural gas – diesel | |
| Heating capacity | kW | 174 | 223 | 291 | 349 | 407 | 466 | 582 | 698 | 814 | 931 |
| Heating capacity | kcal/h | 150,000 | 200,000 | 250,000 | 300,000 | 350,000 | 400,000 | 500,000 | 600,000 | 700,000 | 800,000 |
| Combustion chamber height (Ø) | mm | 450 | 480 | 480 | 550 | 550 | 550 | 550 | 550 | 700 | 750 |
| Combustion chamber depth (L) | mm | 1200 | 1200 | 1200 | 1400 | 1400 | 1400 | 1500 | 1600 | 1700 | 1800 |
| Combustion chamber volume | dm³ | 190 | 217 | 217 | 253 | 332 | 332 | 353 | 380 | 653 | 794 |
| Combustion chamber pressure | mbar | 0.9 | 0.9 | 1.1 | 1.1 | 1.1 | 1.1 | 1.9 | 1.9 | 1.9 | 1.9 |
| Water volume | lt | 950 | 1010 | 1100 | 1250 | 1320 | 1450 | 1600 | 1710 | 1850 | 1950 |
| Boiler weight | kg | 850 | 910 | 980 | 1,090 | 1,200 | 1,300 | 1,515 | 1,915 | 2,315 | 2,715 |
| Required flue draught | mbar | 0,44–0,47 | 0,44–0,47 | 0,44–0,47 | 0,46–0,49 | 0,46–0,49 | 0,46–0,49 | 0,51–0,54 | 0,51–0,54 | 0,53–0,57 | 0,53–0,57 |
| Temperature control range | °C | 35–85 | 35–85 | 35–85 | 35–85 | 35–85 | 35–85 | 35–85 | 35–85 | 35–85 | 35–85 |
| Maximum operating pressure | bar | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 |
| Test pressure | bar | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 |
A = width, L = depth, H = boiler height. The circulation pump and burner are not included.
Installation and commissioning Once the system has been filled with water, commissioning is carried out by our authorised service. Before installation see the installation notes page.
Product enquiry form
Request a quotation for YT-3G
Tell us the area to be heated, its insulation and your preferred fuel; we will calculate the capacity and send you a suitable model and quotation the same day.
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