We're restoring/renovating a c.1890s house in an historic district in
San Antonio Texas.

We're just starting to look at heating and cooling systems (it has
neither, tho does have gas lines which were used for wall heaters).
I've called a few places who will come out to give us estimates, but we
have no idea where to really start with what *type* of systems are
available. Google searches yield 1000s of sites, but I thought I'd ask
here for some advice.

Any particularly good websites which describe systems and compare?
We'd like to get the most energy effecient systems possible (1600 SF
house on pier and beam foundation). Suggestions for the best?


We're doing *everything* to this house: repairing foundation and roof,
re-wiring, re-plumbing, installing insulation, gutting the entire
interior....etc. So if you have any suggestions on other aspects for
such a house, all are welcome!


Thanks!