Technically not a delivery, but still a fairly expensive investment. I just finished the installation of a natural gas tankless water heater. I went natural gas since I only have 100 amp service to the house (200 to the shop priorities ya know). The water heater was priced virtually the same as a conventional water heater ($699.99), but the sticker shock came when I purchased the double wall stainless steel exhaust vent. Youzer!
The shortest run was to install a horizontal exhaust and I still paid $650.00 +/- for the vent, etc. A three foot piece of the vent was $75.00. The installation kit with a couple of wall penetration plates, the final exhaust tip, and elbow and a few other odds & ends was $250.00. I commented to the Menards employee who was helping me that "it doesn't even include a kiss". He replied "I don't know how to respond to that" but was clearly amused.The total cost was right at $1500.00. Sure glad I didn't have to pay labor on top of materials.
Other considerations included removing 500+ lbs of weight from the floor joists (the conventional 50 gallon water heater). Last summer I had a couple of guys jack up & reinforce the floor under the utility room as it had sagged. They told me the joists had been weakened by the furnace installation by cutting out portions for the duct work. Over time (about 60 years) the nails had pulled out so they replaced them with deck screws and installed a basement jack, a steel plate on the ground, and a 4X4 spanning the floor joists shoring up the floor.
When my neighbor & I moved the old water heater to the back door we just pushed it over to drain the remaining water. I had a garden hose attached for at least a couple of hours to drain it but it was still half full since it was so plugged up with sediment, lime, etc. Certainly glad to get it out of my house.