I would like to get a new unit for the house, something that's more efficient than what we've got now. There's a local guy that comes and charges up my A/C and he told me that new SEER-13; 3-Ton unit with a heat pump should cost about $3500 with installation (that was the estimate he gave me last year). I haven't crunched the numbers yet but I'm hoping that the amount that I would save on a monthly basis would help offset the cost of the unit because I'd like to get it financed if I could.
Here are my questions:
1.) Would it be better to replace the coil in my current system and just keep chugging along until the thing breaks completely? The A/C guy told me that the coil is one of the most expensive components of the unit and that if I replace the coil I should probably replace the whole thing.
2.) I've heard good things about the heat pumps but are they really that good? I think the A/C guy quoted me about $2800 to $2900 for a conventional system w/out the heat-pump so I'd be spending $600-$700 more. Just for reference; my December, January, and February electricity bills have been $250, $270, and $290 respectively. so if a heat pump really does reduce the heating costs by a significant amount then I could see where this would add up for me.
3.) Do the above prices sound reasonable for a 3-ton; 13 SEER Unit w/ Installation?
4.) Are the newer units efficient enough to where a modern 2 Ton unit could do the job of an older 3-ton unit or is that not the case?
Any insight would be greatly appreciated,