$150k to pay ourselves something to live off of, for new equipment, to grow the shop if we can, it's not just all pocket $.

And if it's not on sale, it's not the right equipment.

If you hire a big name brand builder you main have to pay more on overhead (project manager, superintendent, heavy equipment and machines) and their profit versus if you hire a small builder, the overhead could be almost nothing, and lastly, if you are a good investor/customer, you maybe able to get a better deal (a builder is willing to build the house for less profit).

I will recover this cost of new heating equipment in 2 years through the savings of what I paid this year for heating oil.

In which case, take advantage of those, or restructure so you re able to.5) Consider charitable giving, if that is a part of your goals6) Consider what equipment and other purchases your business actually needs and purchase those to continue growing the business. 

You can also depreciate capital equipment in every other business.   

You can easily get PAL or passive losses days by investing in LTR or some people will go into equipment deals to take advantage of section 179 deductions as sort of a synthetic way of getting PALs.

Your background equips you to handle the admin work, but as you expand, consider outsourcing to focus on strategic growth.

Fun not obvious one: Bonus depreciation from other equipment assets (ATMS, cars, etc) 

.- 100% bonus depreciation allows you to fully expense purchased assets (think of equipment or any that has a depreciable life under 15 years) in the year acquired. - The EBITDA add-back computation for the interest expense limitation allows you to be fully able to expense your interest expense.