We're extending a Victorian single front. In order to get 5* energy rating (compulsory) we have to:
- either get a 2000l rainwater tank and plumb it to each of three bathrooms on two levels
- get a solar hot water system
Any thoughts on likely relative cost/value of these options?
- either get a 2000l rainwater tank and plumb it to each of three bathrooms on two levels
- get a solar hot water system
Any thoughts on likely relative cost/value of these options?