Our water heater is located in the attic so it was a challenge getting it up there. We had to remove the attic ladder and door and pull it up. The relief valve wound up getting damaged and had to be replaced. In hind sight, we should have removed it before going up. Installation was easy and the pilot light started right up. We had hot water within an hour. It is one of the most energy efficient models available. I wish it had a remote temperature setting so the temperature can be controlled without having to go up into the attic.
- I recommend this product.