The problem with mini splits is you’re essentially buying as many separate systems as mini splits: each has to be separately maintained and looked after. If you’ve got a house rather than an apartment, that can really add up. With ductwork you’ve got one system in the entire house and only that system to maintain. This is another reason why if you’ve already got ductwork it’s best to stick with it.
what about air source heatpumps
You described geothermal rather than heat pumps. A mini split is a type of ductless heat pump. Should probably do a retake of this video…
The problem with mini splits is you’re essentially buying as many separate systems as mini splits: each has to be separately maintained and looked after. If you’ve got a house rather than an apartment, that can really add up. With ductwork you’ve got one system in the entire house and only that system to maintain. This is another reason why if you’ve already got ductwork it’s best to stick with it.