I think in any climate you can have concerns with it being sealed up due to changing temperatures inside and out causing condensation, mold, etc.

It must be sealed.4) Possibly a restaurant supply house, or a higher end kitchen equipment showroom.5) New.

If you worked on plumbing or electric then you could could have a problem as any building inspector is going to want to inspect the work prior to it being sealed.

hi marcus. yes, filters need to be changed often. in fact, i recommend at least once a month, depending on the location of your furnace and cold air return system. that being said, here is my experience and expertise. ( i just competed getting my certification in furnace repair). the purpose of the cold air and fan are to circulate the hot air to the area where heat is needed. but the purpose is also to cool the heat exchanger in the furnace as well. the heat exchanger is a sealed system of pipes that the heat created by the burners heats up. the air from the fan/ cold air return blows passed the heat exchanger to circulate the heat to other areas and to cool the heat exchanger. if the filter is clogged, no air gets past the heat exchanger and consequently, the heat exchanger will overheat and get damaged. i have personally seem the heat exchanger with massive holes in it due entirely to a clogged filter. it is highly unlikely that your heat exchanger inside is full of dirt, but the fan and area around the heat exchanger could be filthy

Originally posted by @Garrett Diegel:So from what I understand.Business Plan / Operations PlanForm LLCPurchase PropertyYes, the business plan is the road map, what to do, how, when, the goals.The operations agreement is the partnership agreement, how the business is structured, responsibilities and agreements.The LLC is simply filing, but you will/may also need an IRS number, then a bank account, city or local business license, insurance and a "Minutes Book" to record meetings and authorizations to act, you may also want a Seal/stamp.Setting up a good company is much harder than most think, it's not just filing with the Secretary of State.

I think the flexibility the 30 year amortization gives me seals the deal. 

I did one this week that cost me $350 and came with a simple operating agreement and a seal for the llc.

@Eugene FinleyIt might have just been a bad seal for the window because that specific window is found in the old garage that had been converted to an extension of the kitchen.

Seal units off, split utilities, the works3.

For an inboard or inboard/outboard, I would also look at the cost for replacing the rubber seals, I would look at maintenance for hydraulic steering (if applicable), I would count on replacing electronics every couple years (sonar, radar, marine radio), gauges, etc.