hi all.....pretty new to these forums and definitely to natural gas. i was wondering if anyone could give me a ballpark figure of how much a LP boiler would cost for a 2040 square ft. home?? not sure if this is correct, but i think that i need around 135000 BTUs. what is a good brand?? i know weil-mclein is for an oil boiler, which is what i would be replacing. i only use this to heat hot water in the summer and as a backup to my pellet boiler. i am looking for something that is about 85-87% efficient since it is only used minimally (have used about 1/8 of a 275 gallon tank since Oct.). also any ideas on cost of install?? i know there are probably a wide range of costs, but i know nothing about this and just need something to start with. thanks so much!!