Benson
Benson GS20 On/Off Gas Train 39-70-531
ON/OFF gas train for Benson cabinet heaters, supplied with valve and pipe.
£1,322.98
£1,102.48 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Benson GS20 is an ON/OFF gas train supplied complete with its valve and pipe. It controls the delivery of gas to the burner on Benson cabinet heaters, opening and closing the gas supply in response to the appliance controls. This assembly is identified by part number 39-70-531.
Signs this part needs replacing
- The burner fails to ignite or the appliance locks out on a call for heat
- No gas reaches the burner although the controls are calling for heat
- The gas valve does not open or close when signalled
- Damage or leakage is visible at the valve or the associated pipework
Before you order
- Confirm the appliance model against the fit list above
- Check that the existing gas train is a GS20 ON/OFF type
- Verify the valve and pipe arrangement matches the installation
- Refer to the appliance documentation for gas type and supply requirements
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BENSON HEATING HD120 (400) CABINET HEATER | — | — | — | |
| BENSON HEATING HD135 (500) CABINET HEATER | — | — | — | |
| BENSON HEATING HD180 (600) CABINET HEATER | — | — | — | |
| BENSON HEATING HN120 (400) CABINET HEATER | — | — | — | |
| BENSON HEATING HN135 (500) CABINET HEATER | — | — | — | |
| BENSON HEATING HN180 (600) CABINET HEATER | — | — | — | |
| BENSON HEATING RD120 (400) CABINET HEATER | — | — | — | |
| BENSON HEATING RD135 (500) CABINET HEATER | — | — | — | |
| BENSON HEATING RD180 (600) CABINET HEATER | — | — | — | |
| BENSON HEATING RN120 (400) CABINET HEATER | — | — | — |
Showing 10 of 18 compatible appliances.
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
BENSON HEATING appliance manual — HD120 (400) CABINET HEATER, HD135 (500) CABINET HEATER, HD180 (600) CABINET HEATER, HN120 (400) CABINET HEATER, HN135 (500) CABINET HEATER, HN180 (600) CABINET HEATER, RD120 (400) CABINET HEATER, RD135 (500) CABINET HEATER, RD180 (600) CABINET HEATER, RN120 (400) CABINET HEATER, RN135 (500) CABINET HEATER, RN180 (600) CABINET HEATER
manualmanualBENSON HEATING appliance manual — VD120 (400) CABINET HEATER, VD135 (500) CABINET HEATER, VD180 (600) CABINET HEATER, VN120 (400) CABINET HEATER, VN135 (500) CABINET HEATER, VN180 (600) CABINET HEATER
manualNo technical questions yet for this part.
Not sure which part?
Tell the parts assistant what it's going into — the appliance make and model, or the GC number off the data badge — and it will check this part is on the fit list.