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Posted by HeatPro on May 22, 2008 at 10:44:18:
In Reply to: gas fired steam boiler posted by emile lafargue on May 22, 2008 at 00:16:46:
Natural gas is at $1.50 per 100,000 btu
Oil is $3 per 100,000 btu.
As you have insulated the entire house, the heat loss of the house is now about $50,000 btuh, so if you get the boiler that will serve the steam system at 135,000 btuh, it will short cycle. You can't get a smaller boiler because it can't fill the existing steam system.
Promoting antique steam residential systems was a clever way to make big sales and commissions; but they are becoming unaffordable fast.
It is best to replace the steam system now, while prices remain low for equipment, with a hot water system where every room is zoned.
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