We need to replace our oil-fired boiler. We have no existing central air. Should we just replace the boiler or install some type of HVAC sys

I would recommend a super efficient mini-split from American Mini Splits.

• It can also be solar powered if you have exposure for the panels somewhere onsite.
• The mini-split is a ductless heat pump system that provides both heating and cooling.

I don't know the size of your house but they have units that can cover 500 to 1500sf or more. We had a lot of flood damage here in Lambertville NJ from floods and one client with an oil heater in the basement and hot water piping decided to switch to this. No equipment in the basement anymore. There are a number of manufacturers that make heat pump systems as well.

Another option to consider could be geothermal. It really depends on your priorities.

For more information:

Read Randy Potter's Q&A "I can't afford geothermal. Is an air-to-air heat pump my best option for heating?"

Also, check Richard Parker's Q&A "Can you help me select a high efficiency furnace?"