Kerosene Heater with Thermostat 3 Models with Set-and-Hold Control
A thermostat is the feature that turns a fuel-fired heater from something you switch on and off into something you set once. 3 of our 28 diesel and kerosene models carry thermostat control: the FS20-23A, FS60-23B, FS50-19BI, spanning 20 kW to 60 kW, or 68,243 to 204,728 BTU/h.
The control works by letting the burner pause instead of cycling the whole unit, and on the models here it keeps fuel use proportional to the outdoor temperature or holds a stable process temperature. That matters most where the heater runs all day: 2 of the 3 are direct fired for workshops, garages and event halls, and 1 is indirect fired for painting and coating booths and food preparation halls.
All 3 share the category build: 441-grade stainless steel combustion chamber rated to 1000°C, overheat cut-off, heat-dissipation protection, flameout protection, shutdown protection and an error indicator light, with the electrical load limited to the fan motor, ignition and fuel pump. Every model on this page is built for diesel or kerosene only — no model here is approved for petrol or bio-oil.

Kerosene Heaters with Thermostat at a Glance
Each model here states thermostat control in its own title or feature list. BTU/h is converted from the published kW rating at 1 kW = 3,412.14 BTU/h.
All 3 Diesel and Kerosene Heaters with a Thermostat
Click a model to open its full specification sheet, feature list and recommended applications.
FS20-23A20kW Diesel Forced Air Heater with Thermostat FS20-23A20 kW · 68,243 BTU/h · Direct fired
FS60-23B60kW Diesel Heater with Thermostat for Event Halls FS60-23B60 kW · 204,728 BTU/h · Direct fired
FS50-19BI50kW Indirect Diesel Heater for Painting and Coating FS50-19BI50 kW · 170,607 BTU/h · Indirect firedKerosene Heaters with Thermostat — Full Specification
Heat output as published on each model’s own specification sheet. The BTU/h column is the kilowatt figure converted at 1 kW = 3,412.14 BTU/h — it is a conversion, not a second rating.
| Model | Heat output | Equivalent | Firing | Recommended use |
|---|---|---|---|---|
| FS20-23A | 20 kW | 68,243 BTU/h | Direct fired | Small construction sites, workshops, garages |
| FS60-23B | 60 kW | 204,728 BTU/h | Direct fired | Exhibition halls, event venues, temporary large structures |
| FS50-19BI | 50 kW | 170,607 BTU/h | Indirect fired | Painting and coating booths, food preparation halls |
What a Thermostat Is Bought For
Thermostats are bought for running cost and for process stability, not for more heat.
Spaces heated all day
A thermostat holds the set temperature and lets the burner pause, so the heater stops burning fuel once the space is up to temperature.
Garages and small workshops
The FS20-23A at 20 kW is the model in this group specified for garages. See the garage kerosene heater page.
Process temperature control
The 1 indirect-fired model here uses the thermostat to hold a stable process temperature in coating and food preparation halls.
Other Diesel and Kerosene Heater Specifications
Each specification below opens the models in production for it, with heat output, firing type and recommended application.
Kerosene Heaters with Thermostat — Common Questions
Which of your kerosene heaters have a thermostat?
3 of the 28 in this category: the FS20-23A, FS60-23B, FS50-19BI. They span 20 kW to 60 kW.
What does the thermostat actually do?
It lets the burner pause instead of cycling the whole unit on and off, so fuel use follows the temperature rather than a manual switch.
Are they direct or indirect fired?
2 of the 3 are direct fired and 1 is indirect fired. The indirect model is the one for painting, coating and food preparation areas.
How many BTU are they?
68,243 to 204,728 BTU/h across the group, converted from the published kW ratings at 1 kW = 3,412.14 BTU/h.
Can they run on kerosene as well as diesel?
Yes — diesel or kerosene only, on all 3 models. Petrol and bio-oil are excluded on every specification sheet in this category.
Is there a model without a thermostat if I do not need one?
Yes — most of the range is switched manually. Start from the full diesel and kerosene range and pick the output step.
Need Thermostat Kerosene Heater Pricing?
Send the model, the specification you want, your market and the target quantity — we reply within 24 hours with FOB pricing, lead time and a loading plan.
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