It's perfectly acceptable to have a high-efficiency furnace installed with one pipe. Just flip through the pages of any high-efficiency furnace installation manual and you'll find the answer. I'm ...

Dear Jim: With natural gas prices so high now, I think I should replace my old furnace even though it still works. I want the most efficient design to save money and reduce pollution. What models ...

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Thu, 14 Apr 2011 19:39:43 GMT — National Grid has rebates available for customers who want to save energy and lower their bills. New York customers can receive rebates ranging from $18 for a ...