(no labor cost in the figures) when I rehab a new property i buy we generally put in a new water heater, if the furnace is 20 years old it gets a new one, (order from e-barnett.com)  you would need about a 70,000 BTU furnace, they run about $550 for a 92% high efficiency shipped to your door, (plus install)  

Two tenants from Ohio and I e-signed a lease for my property at Houston last year.

Unsafe" is probably language that local C/E uses to refer to Health and Safety Code laws as they relate to their ability to withdraw a Certificate of Occipancy.As you may already know, I've spoken at our state's annual code enforcement conference and follow multiple cities fairly closely.

send me an e-mail address please

@Carolina E.

I keep getting e-mails from a guru to order a course.

Originally posted by @Carolina E.

I won't even let them put me on their e mail list anymore..

If you would like an e-intro, send me your direct email and I will connect you to the owner.Regards,Oren

Thank you @Bob E. look forward to learning, Thanks for the welcom@Daniel Hyman