Rent or Buy Your Furnace and Air ConditionerOur furnace just quit working and our air conditioning unit is 27 years old! Amazing life cycle and it still works. The furnace is only 14 years old and we are trying to figure out if we should rent or buy your furnace and air conditioner or just repair it. Most people would just say replace it.

After all the AC unit does not owe you anything and it will likely quit sometime soon anyway. We could perhaps just repair the furnace and hope for the best. However we wondered what the economics would be considering repairing the furnace or replacing both the furnace and the AC unit. Also a third scenario has been proposed and that would be to rent both units. The price would include all cleaning and servicing for as long as we paid the monthly payment. My initial reaction was to always purchase however when you do the math, there is a surprising answer.

Rent or Buy Your Furnace and Air Conditioner

We assumed a 15 year study life, a cost of $9500 to purchase the units, a cost of $25 a month to provide service and warranty once the manufacturers warranty was finished. We also assumed a cost of $700 for repairs which would last for one year. The rent scenario assumes $50 a month for the furnace and $45 a month for the AC unit including all servicing and warranties.

Using these numbers it makes sense to rent if you are planning on 12 years or less to rent. It makes sense to purchase if you feel that the units will last longer than 11 years which they should. However I need to find $9500 to pay for the installation and I still need to pay $25 a month for insurance.

I can finance the cost of the furnace etc.  I could use some of my savings to pay for these units and forego any income I might get from the current investments. I am fortunate to collect 3% on my investments at the present time. This is a real cost to me which I would save if I were to rent the furnace and the AC unit.

This income when factored in changes the breakeven period from 11 years to 20 years. This is probably more than the life cycle of these new units and longer than I plan to live in the house.

I still need to confirm all of the estimates with actual quotations. However I am definitely leaning towards renting and not making a purchase at this point.