Is solar water viable as an alternative to heating a home using gas or electricity?
Solar Thermal Heating systems should not be seen as a alternative heating system, but it is a supplement to your primary water heating system. Solar cannot entirely replace your main heating system, as there are sometimes days when there is insufficient sunlight. Averaged across the course of a year, a solar thermal heating system can generate 60%-70% of a your hot water needs, providing that it is the correct size.
