Regulation has helped a lot! Government can act as the unifier of buyer's not that long ago central systems scored 6 now this lowballs at 18.

If you increase the time of operation you can earn greater return on the costs invested. Commercial water heating is storing heat cheaply now to avoid storing water warm that will be used as that causes biofilms and disease.

Healthy sleep in room you want to work in upon rising creates a challenge for live pumping of heat. A sudden heat is best and that means storing from day before. We thrive sleeping in cold being woken by warmth.

$20,000 on a four ton heating load is compromised by this design tragically.