Guide ·
How to Size an Industrial Heater

When asking how to size an industrial heater, begin by recording the listed heat output and heating volume or area for each model under review. This guide gives you a specification worksheet and questions for the supplier. Keep your site requirements beside the catalog entries and request the rating conditions for the proposed equipment.
Collect the information for a sizing review
What space is being considered, and which dimensions has the site reviewer requested? What temperatures, operating schedule, openings and building description should accompany the inquiry? Ask who will calculate the heating requirement and what documentation they need. Record their answer alongside the proposed model code and requested manual.
Preserve the rating unit
The models in this table list heating volume in m³. Other catalog entries use sq ft or m² for heating area. Keep the original unit with each value. What conditions accompany the rating? Ask for the model-specific explanation before comparing that entry with a site requirement or with a figure expressed in another unit.
Ask about a proposed equipment quantity
Is the request for one unit or several named units? What installation plan accompanies that quantity? Ask the site reviewer to assess the proposed arrangement against the model documentation. Keep output, airflow and coverage entries separate in the worksheet, and request the reasoning behind the proposed selection rather than adding the ratings into a site-performance promise.
Listed model-field comparison
Use the table to record the entries published for each named model. Copy a value with its unit and qualifier. Fields marked On request need confirmation for that code. Keep output settings, fuel consumption, heating volume / area and supply entries in their own rows when preparing a comparison.
| Model | Heat output | Fuel | Power supply | Fuel tank / cylinder | Fuel consumption | Heating volume / area | Airflow | Ignition / control | Product size | Net / gross weight |
|---|---|---|---|---|---|---|---|---|---|---|
| ZB-H100 | 30 kW (100,000 BTU) | Kerosene, diesel | 110V / 60Hz, 220V / 50Hz | 50 L | 2.9 L/h | 480 m³ | On request | Continuous spark ignition; thermostat | 1100 × 550 × 600 mm | 30.5 / 33.6 kg |
| ZB-K175 | 51 kW (175,000 BTU) | Kerosene, diesel | 110V / 60Hz, 220V / 50Hz | 50 L | 4.8 L/h | 1,020 m³ | On request | Continuous spark ignition; thermostat | 1060 × 540 × 575 mm | 22.3 / 25.8 kg |
| PLUS K180 | 51 kW | Kerosene, diesel | 110V / 60Hz, 220V / 50Hz | 50 L | 4.8 L/h | 1,060 m³ | On request | Continuous spark ignition; thermostat | 1130 × 560 × 735 mm | 25.6 / 28 kg |
| ZB-K350 | 100 kW | Kerosene, diesel | 220V / 50Hz | 70 L | 9.8 L/h | 2,000 m³ | On request | Continuous spark ignition; thermostat | 1310 × 500 × 750 mm | 52 / 56.5 kg |
| ZB-EF2 | 25 W / 1,000 W / 2,000 W (three settings) | On request | 220V / 50Hz | On request | On request | 40 m³ | 120 m³/h | On request | 220 × 200 × 320 mm | 3.5 / 4.0 kg |
| ZB-EC15 | 85 W / 7,000 W / 15 kW (three settings) | On request | 380V / 50Hz | On request | On request | 300 m³ | 1,292 m³/h | On request | 645 × 484 × 697 mm | 20.1 / 21.5 kg |
Questions for the shortlisted models
ZB-H100
The fuel row names kerosene and diesel. Which one are you requesting? Ask for the corresponding fuel-grade and filling instructions in the manual. If your quotation needs a runtime entry, request a documented figure for this model. What conditions accompany it, and which operating instructions should your reviewer check?
ZB-K175
Which supply version should your inquiry name? The record lists two voltage / frequency entries. Ask for the version you want and the connection instructions that accompany it. For the continuous spark ignition and thermostat entries, which manual pages explain the controls? Include any outstanding control questions with this model code.
PLUS K180
Ask for the manual describing the listed ignition and thermostat. What control instructions should accompany the proposed order? If you need shipping information, identify whether your question concerns the unit or its package. Which net and gross figures belong on your receiving documents, and what packaging details need order-specific confirmation?
ZB-K350
The heating entry uses a volume unit. What rating conditions accompany that figure? Ask your reviewer what project information to send with the model code. Keep any proposed application as a question in the inquiry. Which placement, ventilation and clearance instructions must be checked in the model manual before completing your selection?
ZB-EF2
Ask what measurement conditions accompany the airflow and noise entries. Which of those fields does your purchasing review need documented? Keep the output settings in their own row. If the intended arrangement needs particular control or connection information, ask for it in the manual and leave unlisted details open for a model-specific answer.
ZB-EC15
Read the heat row exactly as printed, including its separate entries. Which entry do you need explained in the model documentation? Ask for the control and supply instructions rather than rewriting the row as a single setting. What information does your electrical reviewer need before the requested version is placed on the purchase specification?
Build the quotation worksheet
Make one column for each exact model code. Start with the values in the comparison table, then add a column for supplier answers. Keep the quotation quantity, requested documentation and delivery details together. When a required entry is On request, name that field in the inquiry so the answer can be placed beside the correct model.
You can ask for the output entry as printed, the voltage and frequency, the listed fuel and the dimensions. If several settings appear in the heat row, copy the full row. Don't turn a fuel-consumption range into a runtime entry. Ask for the conditions associated with each figure and any missing operating information in the manual.
Buyer confirmation checklist
- Have you identified the model code in every request for a missing field?
- Which voltage and frequency should be confirmed on the quotation?
- Have you preserved the units for output, consumption, airflow and heating volume / area?
- What rating conditions does the supplier document for the proposed model?
- Which fuel grades, supplied components and connection details does the manual specify?
- What installation, ventilation, clearance and inspection instructions must be reviewed?
- Who will approve the proposed application and operating arrangement?
- Which dimensions, weights, package entries and loading figures need order-specific confirmation?
Follow up with the relevant specifications and guides
Open Diesel Kerosene Heaters for the next part of your inquiry. What do you still need to ask about the proposed unit? Add that question to your worksheet and request the relevant documentation with your quote.
Open Industrial Electric Heaters for the next part of your inquiry. What do you still need to ask about the proposed unit? Add that question to your worksheet and request the relevant documentation with your quote.
Open Warehouse Heater Guide for Commercial Spaces for the next part of your inquiry. What do you still need to ask about the proposed unit? Add that question to your worksheet and request the relevant documentation with your quote.
Open Direct vs Indirect Diesel Heater: Which Do You Need? for the next part of your inquiry. What do you still need to ask about the proposed unit? Add that question to your worksheet and request the relevant documentation with your quote.
Open Construction Site Heating: How to Choose a Construction Heater for the next part of your inquiry. What do you still need to ask about the proposed unit? Add that question to your worksheet and request the relevant documentation with your quote.
Questions to close before ordering
What should accompany the model code?
Send the quantity, the listed fields you are comparing and the entries that need confirmation. Include the project requirements you want reviewed and ask for the model sheet and manual with the supplier's answer.
How should missing fields be recorded?
Leave them On request. Don't copy a value from a neighboring model. Ask for an answer for the exact code and keep the supplied units and qualifiers when updating the worksheet.
Can a rating settle the installation questions?
Ask for the conditions accompanying the rating and the installation instructions for the proposed model. You'll need those documents in the review of your intended application; keep them with the specification request and the site reviewer's questions.
Official references
For general reference reading, review the agency documents below. Which parts apply to the proposed equipment and site? Ask the responsible reviewer to check their scope alongside the exact model manual. These references provide general context; ZOBO model values are the listed fields in the comparison above.
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