My greenhouse heater is consuming too much gas?

This can be due to a number of factors but is usually related to the position of the heater, and the thermostat.

Make sure the heater is raised off the floor. This will prevent the cold transfer from interfering with the thermostat.

When placing the thermostatic probe – try to position this directly above the heater, at the height at which you want to measure the temperature and the probe is not in contact with anything metallic. This will ensure it works efficiently and maintains the right temperature. The closer the probe is to the heater the lower the temperature will be maintained. Also check the temperature range the greenhouse heater functions from and to as well as if it is a mechanical thermostat as this can cause fluctuations as much as +/- 3c, a temperature range of 7c - 30c for example with a mechanical thermostat with variances of +/-3c could maintain a temperature of 10c on it's lowest setting.

Another potential issue is with the cylinder, valve, and hose. Start by checking all the seals and connections for leakages, using either a leak detection spray, or a water and soap solution (never a naked flame!). It’s also important to ensure that you are using an approved regulator, with the right gas flow.

One final solution is to check the cleanliness of the heater. Sometimes, spiders and insects can take up residence inside the heater, nozzles, and burner. Over time, soot can also build-up, which can impact efficiency. Check the manual for full cleaning instructions.

Please see our blog for further greenhouse heater troubleshooting