Anything I would ad to My House would need to be done with a Permit from Building and Planning. When you get a Permit Building and Planning sends that info to the County and you will get a letter from the County asking what you are doing and how much it will cost.

After giving that info they will raise your Property Tax because you made an Improvement on your House.

On top of that legally Plumbing and Electrical work are supposed to be done with by a Licensed Plumber or Electrician.

The above extra expenses added to the Cost to buy the items makes the Payback Time for any possible Energy Savings a long one.

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84 300D, 82 Volvo 244Gl Diesel