Isomar

OK.. where to start... So in a fix application with limited charge ( like a fridge) yup good to go.. yo get everything rated no problems there... isobuten for that application go for it..

Propane.. so if you ues in splits and heat pumps is a problem. ( yes they use them in gas plants but everything is explosion proof ). As you can't have limited charge depending on tonnage. And Propane has a very very nasty habit of settling to the lowest spot ( heavier than air) so if you develop a leak in your system your turning your house in to a bomb.

I do think CO2 ( some adjustments would need to be made and a buch more work for welders ) will work good on the commercial side. ( grocery store racks and the like. ) I am not sold on it residential.

would work better where most buildings already have cooling/heating loops with glycol. Witch in not north America.

And on a note for NG ( methane) the pressure is less than .25 a psi in a home and it is lighter than are so tends to float up and out if leaking.. and it smells.. ( do to an oderent. ) On that note the Propane that would be used in these types of system would not have that smell so even more of a worry.

Hey there your friendly neighborhood ref tech. R600a and R290 are straight up bad ideas ( more than a wee bit flammable (isobutan / Propane) ) and although r744 is good ( CO2 ) it's pressure are nuts. ( the whole system needs to be made of steel/iron) and would not work well with most common split systems. So ya nice idea I am not sure what's next but these are not the answers in private residents.

But there it is... if the top took a hiar cut that would cover it. Lower entrance requirements to get the job.. means more eligible works.. it's a tuff one yes. Is there enuff workers maybe. But it's worth a try.

We don't have a worker shortage we have a shortage of well paying jobs. If companies pay better than people will take the jobs.. and that sucks she has to work so much has they try hiring at better wages or you know she could say no...

That's the ponit same pay as 40 hr for 32 hr. . Better work/life balanced. I know it will not matter to you as you pick your hrs but there are a ton of people that are not that lucky.. if they whant to work 40 nothing is stopping them the company will just have to pay 8hrs of overtime.

The answer is more workers..

I think the thing is you are already working less than a 4 day week (32 hr .. ) your doing 18 at most so I don't think you really can comment on this one ...