https://www.fireplacesandstove....s.uk/products/ex-pro
Patio Electric Heater Patio electric heaters are a modern way to extend outdoor living spaces. Unlike older propane and natural gas-fueled patio heaters that emit carbon monoxide, electric models don't require ventilation and are safe to use in closed spaces as long as they are not left unattended. To determine the power (BTUs) required to heat your space, calculate the cubic footage of the space and the degree of temperature rise you would like to achieve. Power Patio heaters are ideal to