Cwtch cabins, an off grid campsite enterprise, relies on generating all electricity and heat on site from renewable sources including a HDG K33 wood pellet boiler.
We designed their system to use solar water (thermal), solar PV and a biomass boiler to heat the water for the showers and basins (yes, they have hot showers). Their cabins or shepherd huts come with their own solar PV set to charge phones and lanterns and has lighting fixed inside.
Their ethos of having a low impact on the environment and been completely sustainable, fits perfectly with a biomass boiler installation.
Their requirement to heat their own home as well as hot showers and domestic hot water for 40 people twice a day at the campsite meant that a HDG K33 pellet boiler was an ideal fit for the job. As it has an automated fuel delivery system, it can turn itself on and off automatically as the demand for hot water is needed.
The system was designed as a hybrid system utilising a biomass boiler and solar water (thermal) panels for heating the water. A large 3000 litre thermal store along with the 33kW pellet boiler in the boiler house on the campsite, with a district heating circuit to the house, where a 1000 litre thermal store saves an adaquate supply of heat needed for the house.
The system uses solar thermal panels connected to the large thermal store, collecting free hot water in the summer months. The main reason for the extra 1000 litre thermal store buffer in the house was that in winter, when the campsite is not in use, the boiler can be switched to just heat the small buffer in the house, bypassing the larger 3000 litre sthermal store completely. In the summer when the campsite is in use the house will draw its heat from the 3000 litre thermal store and transfer it to its smaller buffer.
This ability to split the heating circuits between summer and winter means a massive saving in energy and fuel costs and also allows for easy expansion to cover the high demand for showers in the summer, all utilising the same heat source of the biomass boiler and solar water (thermal) panels.
If you have a requirement for heating hotels, hopsitality, event venues and camp sites, talk to us as we have many years experience in this field.
Benefits
- A hybrid renewable heating system, making the best of both solar thermal (water) and biomass heating.
- A scalable heating circuit that can heat both the campsite and house in the summer season and be reduced to just the house in the closed season.
