Discussions Mechanical systemsHeating and coolingHeat pumps, geothermal and AC What do you get a water heater air-conditioner and heater mini-split? Save Like Comment(1) Print Share Facebook Twitter Email R What does it take to get a water heater air-conditioner and heater mini-split? Réal Paquin May 28, 2020Last updated: Sept. 22, 2020 Our water heater just died and it is near expiry date so it needs to be replaced. We have been looking to install an air-conditioner with a mini-split ductless system in our boiler heated house. Can we combine our efforts?