Maximizing Efficiency of Minisplit System
Hi all – I have a 2600 sq ft house in Massachusetts and am heating the house with mini splits for the first time. We installed 5 Mitsubishi Hyper Heat units. The backup system is a 30+ year old oil burner with baseboard heat. I’m trying to maximize efficiency with the two systems but am stumped about to do it.
Right now, I have the mini splits set to 68 F and I just leave them there 24/7, like the installer recommended. I have the oil burner thermostat set to 65/66. Does that sound right? Am I just wasting electricity if they are set to 68 while the house is empty for 7-8 hours per day?
When outside temps drop into the teens or single digits, should I turn the mini splits off entirely or should I just turn up the other thermostat and let the oil burner do the heavy lifting?
Lastly, does anyone have any advice for integrated controls? The Kumo Cloud app is terrible and I have Nest thermostats. So, I can’t use IFTTT to turn units on/off based on outside temps.
If anyone has any tips for juggling mini splits and oil heat in New England, I’d really appreciate it!
GBA Detail Library
A collection of one thousand construction details organized by climate and house part