Boss
Boss Capillary Thermostat Gtlhr070
Boss capillary thermostat Gtlhr070 for indirect and solar unvented cylinders.
At a glance
- Part type: capillary thermostat
£72.00
£60.00 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 Capillary Thermostat Gtlhr070 is a cylinder thermostat manufactured by Boss. It is used across the Boss, Heatstore, MAIN, Pullin and Santon cylinder ranges, including indirect, solar indirect and unvented models. The thermostat regulates stored water temperature by sensing cylinder temperature through its capillary probe.
Signs this part needs replacing
- Cylinder water runs hotter or cooler than the set temperature
- Store temperature is inconsistent between draws
- Thermostat fails to switch the heat source off at the set point
- Heat source continues to run with the cylinder already up to temperature
- No response from the cylinder thermostat dial or control
Before you order
- Confirm the cylinder make and model against the fit list
- Check the existing thermostat part number and capillary layout before ordering
- Verify whether the cylinder is an indirect, solar indirect or unvented unit
- Ensure the replacement thermostat matches the control position on the cylinder
No specification data held for this part.
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BOSS 190 Litre Indirect Solar | — | — | — | |
| BOSS 210 Litre Indirect Solar | — | — | — | |
| BOSS 250 Litre Indirect Solar | — | — | — | |
| BOSS 300 Litre Indirect Solar | — | — | — | |
| HEATSTORE HS10U Water Heaters | — | — | — | |
| HEATSTORE HS15U Water Heaters | — | — | — | |
| HEATSTORE HSU Unvented Cylinders | — | — | — | |
| MAIN Indirect (Original Model) 120 Litre | — | — | — | |
| MAIN Indirect (Original Model) 150 Litre | — | — | — | |
| MAIN Indirect (Original Model) 170 Litre | — | — | — |
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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.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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