Would greatly appreciate any feedback on our situation. I've been reading on this site for weeks and still feel like there is so much more to learn... We are currently on propane in Maryland with no natural gas option. A 1950s rancher that was renovated and expanded by 150% into a 5-level split with zoning to each level along with 12 20-year old skylights (and probably other leak areas in the home) has us spending nearly $5k annually on LP to keep the house only moderately comfortable during the cold season. We have insulated the existing attic spaces and done Aeroseal throughout which was exceptionally effective at reducing lost CFM. After 7 winters of owning this home, it's become clear geothermal is the best option for us and we are scheduled for installation in July. Because the house is on 2 separate systems, we will have 2 WaterFurnace Series 7 units installed with backup hydronic heating using the existing (and relatively new) Delta Triangle Tube combo boiler with loops run to both Series 7 units. We have a house of 2 adults and one toddler and shower at home 3-4x/week, the other days are at the gym. Our installer offers several desuperheater options, though I remain a bit unclear on a few things after talking with them. The options and pre-30% federal tax credit costs are: 1. WF DSH ($1500) 2. WF DSH + 50 gallon tank ($2000) 3. WF DSH + WF 85 gallon GeoTank ($3000) My questions are: a. Are DSHs usually a wise investment given our situation? b. Is there any significant benefit to having an extra tank added per option #2 or #3 above and what would that be? c. We already have problems getting hot water to the furthest two bathrooms and because we do not have a hot water return loop, I had a Grunfos recirculating pump installed which helped noticeably with this problem, but it's still not optimal. Would a DSH adversely effect the time it takes to get hot water to these problem bathrooms? In other words, might I be saving money on LP (even if I'm spending some on electricity) to make my hot water cheaper, only to worsen the problem that bothers my wife the most, which is how long it takes to get water to the master bath? Thanks very much for any feedback and if there is relevant related guidance, I welcome that as well.