After reading more carefully, it seems your sizing estimates are all over the place, from 2.5 ton (Lennox), to 3 ton (Trane), to 4 ton (Rheem). A properly done load calculation is necessary to get the equipment size right, especially since you've made changes to your home's structure. Now would also be a good time to have your ductwork balanced so that each room gets the required airflow per the load calculation. Before investing money in a new system, it is very important to ensure your new system is operating at its rated capacity and efficiency.

The Luxaire/York model is the Acclimate HLB030F1

navy dave a very nice system. you are replacing a 2 1/2 ton system? I always prefer that a new and correctly sized refrigerant lineset be installed unless there is a building obstacle/obstruction. here are the performance/eff numbers and this system does qualify for tax credit. 1382160 Active Systems XL15I WEATHERTRON TRANE 4TWX5030A1 4TEE3F39A1 30000 13.00 15.75 30000 9.00 18000 the major differences of the XL15i vs the XR15 are the following. 1.Trane's Proprietary condenser top 2.XL15i is a little quieter 3.I would expect the XL15i to be more expensive. 4.12 yr warranty on XL15i compressor vs 10 yr warranty I would want Trane's 803 stat or better yet HW VP IAQ that has "DOD" feature. Trane has a 7/12KW staged heat strip that I would recommend. nothing special about your pricing. see below quote on a three ton XL15i also in Virginny. Posted by markva (My Page) on Mon, Apr 12, 10 at 14:24 Wanted to get your opinions on the following matched Trane matched heat pump system: HP: XL15i (4TWX5036A1) A/H: VS (4TEE39A1) ARI numbers provided to me are: 36,000 BTU cooling 13.0 EER 15.0 SEER 9.0 HSPF 34,000 BTU @ 47 23,600 BTU @ 17 Included in package are: Trane 803 stat, new disconnect box, new refrigerant line, and replacing 4 supply lines in attic. Total Price: $6,000 (check/cash) or $6,796 if financed (3.9%) IMO

paul what is your location? you are replacing a 3 1/2 ton? these are my minimum specs for a new HP system. both outside and inside units should be replaced to have a properly matched system. 15 SEER, 12.5+ EER, 9 HSPF best matching VS air handler full BTUs in both cooling and heating for your rated size R-410a refrigerant(same as Puron) scroll compressor preferred electronic demand defrost preferred thermostat with "dehumidify on demand" feature staged backup heat strips new and correctly sized refrigerant lineset you want a thorough inspection of your ductwork system. size, overall condition, supply and return lines, insulation qualities, leak test, etc. any hot/cold spot issues in your home should be addressed. I would only use authorized dealers for the various brands that provide quotes. see mfg websites. I would look at Trane/AmStd,Rheem,Carrier/Bryant what size heat strip do you have now? generally, I think for a premium sgl stg HP condenser like the XL15i that a price of $2k/ton is a good price. Of course, the fed govt tax credit will come into play. There are only two thermostats that I would have for this system. Trane's 803 (identical HW equivalent) or HW VisionPro IAQ with outdoor sensor. I always recommend a new and correctly sized refrigerant lineset. This system will come witha 12 yr warranty on compressor and 10 yr on parts. You might consider a whole house pleated filter media cabinet. I will assume the heatpack is the heat strip. what size? I am not clear what a power kit is.pls clarify. post back. IMO