Re: Gas Boilers - any advice and what to get?
I'm with motoguy. You'll get the most bang for the buck by making sure your house is properly sealed and insulated. Since it's a boiler, you shouldn't have to worry about sealing air ducts. Besides that, you'll probably be more comfortable.
Once you've completed weatherization, give it a year or two and see how your energy bills change. Once you know what your bills will be with weatherization, you'll be better able to determine what your energy savings will be by upgrading to a more efficient boiler, and with that you can determine the payback time. If the payback time in energy savings exceeds 1/3 of the expected life of the boiler it's probably not worth replacing at this time unless your utilities provide significant "green" credits on your utility bill for upgrading.
You also have to consider maintenance and repair costs and fluctuations in energy prices. Since these can be hard to predict, your payback time should be significantly less than the lifetime, hence the 1/3 rule.
The "Senior Member" designation under my name doesn't mean I know a lot, it just means I talk a lot.I've been a DIYer since I was 12 (thanks, Dad!). I have read several books on various home improvement topics. I do not have any current code books I can refer to. I was an apprentice plumber for two years.