Our heater cable is intended for heating the space within the greenhouse. The greenhouses are not 100% sealed, so it's not going to be a hot house - the cable is intended to prevent frost and raise the ambient temperature during winter. Each cable is 4m long, and should be run around the interior of the greenhouse, fixed to the shelves with cable ties.
The control unit can power two heater cables at the same time, if no lights are turned on. If the lights are on, the control unit will only turn on one of the two heater outputs. The lights give off a lot of heat, and consume a fair proportion of the control unit's power capabilities.
The heater cable is self-regulating, and will keep itself around 50-60 degrees C.
The other option for heating is heated seed trays. These have a heater pad sandwiched in between two standard seed trays. The heater pad can reach 40 degrees C on a mild day, so it will need to be regulated to your desired temperature using settings in the app. Ensure you have a soil moisture sensor ( which also reads temperature ) in the tray, to prevent the soil from getting too warm. Up to six heated seed trays can be powered from the control unit; 3 per heater output.
You can have one heater cable and three heated seed trays on your two heater outputs.
Any heater output can be triggered using any of the temperature sensors. Normally you would turn on the heater cable based on ambient air temperature, and the heated seed trays based on the temperature of the sensor in that tray. Multiple heated trays in the same area of the greenhouse can be expected to stay around the same temperature, so one sensor can serve multiple heated trays.
The control unit can power two heater cables at the same time, if no lights are turned on. If the lights are on, the control unit will only turn on one of the two heater outputs. The lights give off a lot of heat, and consume a fair proportion of the control unit's power capabilities.
The heater cable is self-regulating, and will keep itself around 50-60 degrees C.
The other option for heating is heated seed trays. These have a heater pad sandwiched in between two standard seed trays. The heater pad can reach 40 degrees C on a mild day, so it will need to be regulated to your desired temperature using settings in the app. Ensure you have a soil moisture sensor ( which also reads temperature ) in the tray, to prevent the soil from getting too warm. Up to six heated seed trays can be powered from the control unit; 3 per heater output.
You can have one heater cable and three heated seed trays on your two heater outputs.
Any heater output can be triggered using any of the temperature sensors. Normally you would turn on the heater cable based on ambient air temperature, and the heated seed trays based on the temperature of the sensor in that tray. Multiple heated trays in the same area of the greenhouse can be expected to stay around the same temperature, so one sensor can serve multiple heated trays.