So the local big box store has the GE Hybrid Water heater on sale for 999.00 down from 1599.00. I have been having issues with my hot water which runs of the sidearm of my oil boiler. ANy thoughts on upgrading to the hybrid unit to be used and eliminating the sidearm. I run my Tarm during the cold weather. Does the hybrid hot water heater connect easily with my Tarm?? ANy thoughts would be much appreciateed.