It also depends on the type of furnace. 60% 70% are generally fine, they are old natural draft type.  80% the kind with a motor that gives the exhaust a little push but still vent in metal flu.

Make a casual RV park.Research and develop a business model for the military investor where they buy a really nice used motor home.  

Eli Lily (pharma), Elanco (spin off company from Eli Lily), IU Health Network, Purdue University, Indy Motor Speedway are all developing as we speak.

Heck you don’t even need to take my word for it come down to Motor City where big tech and the big 3 have invested billions upon billions in the past few years and check us out for yourself.

Disposals sit with stagnant foul water in them unless the electric motor is run very often; bewilders me how common they remain despite weekly garbage collection well as consumers now composting amidst climate & pollution woes.Mwave + hood combos aren't modern-looking as today's exposed range vents but save such a huge counter footprint so its a no-brainer to keep them off such valuable workspace when tight.

LOL.. of course we were not that great at it.But then I got the idea ( and we turned what I thought was a white elephant into a nice project) I had just bought my Hanger at Aurora state airport  and it was a condo.. so I thought hey all those folks in the floating homes.. they will never have storage.. so I put a condo plat on our storage took about a year and maybe 50k it was actually easier than I thought it would be. .. created 44 storage condo's.. now we have all seen the big storage condo's were folks with 2 million dollar motor homes store their stuff or small business shops.. but this was somewhat unique I thought to have 200 sq ft storage condo's well they were quite popular and we sold them all on long term contracts.. so now we shifted the burden of running the joint to the owners created an HOA let them self manage etc.. then we turned the top 7k sq ft into heated storage.. and sold that off ...

I assume they replaced the inducer motor, well that too is only about $300 - 400, These guys are overcharging you.  

I digress....My general contractor is very poor at responding/communicating and I deeply regret not doing more about this sooner but since August this is what he has done:replaced the shinglesreplaced the heat pump unitsealed the flat roof with elastomeric coating, but got the silver material all over the dark brown gutters so it looks horrendousReplaced the outside A/C unitReplaced the well motor/pump, but no further testing of the well or plumbing has been done.This is what I have done (keep in mind, I have a full time job and also run a small side business):Built a new front door from scratch (it was pointed and not rectangular so no off the shelf options).

They sit on the motor and cause extra wear.

CA Hammers you ..so take a 500k purchase  and CA state sales tax at 8% that's 40k then the use tax.one reason why the HIGH end motor home industry is based here too.. no sales tax on 1 million dollar coachs but folks that have those know all the loop holes.