August 2022, we are looking into buying and installing one or more heatpumps for our oil-heated forced-hot-water home to reduce our winter oil use and to give us some cooling during the summer heat/humidity.

Note that whatever heat pump you choose, to get rebates, it has to be on the MassSave list, see: https://www.masssave.com/saving/residential-rebates/air-source-heat-pumps/heat-pump-qualified-list

• Will your electrical feed need to be upgraded? (If you have 200 Amp service, will that be enough to support one or more heat pumps?)
• Temperature range. Make sure your units can handle the temps in our area (eg, -20 to 110F)
• Will the unit work with your existing thermostat or must it be replaced?
• Will (and if so how will) heat pump work with existing home heating system?
• Verify experience of Installers and Tech support

• Get wall units for rooms with doors you can close (to isolate heat/cool to the room)
• Heat pump for your hot water. will chill your basement if it's in the basement

We got a quote from a company for the cost of a whole-house solution. There are two rebates available to us, approx $5k since we're going whole-house, and $10k if we also sign an agreement that we will only use oil heat in an emergency.

Description of quoted system: TBD

We have an oil-fueled boiler forced hot water heating system. We have a single window air conditioner that the heat pumps would replace. Here are the cost factors for our situation.

Assuming for the purpose of this analysis:

• Energy costs stay the same over the analysis period (oil and electricity)
• Maintenance costs stay the same over the analysis period
• We are not considering electricity savings by using heat pumps over the one window air conditioner we're using

IF YOU HAVE COMMENTS on this, please let us know! Send to: both@toku.us and THANK YOU for your input.