Top critical review
3 people found this helpful
Poorly Engineered, even worse Customer service
on October 17, 2008
Save your money.
I bought and received the Bosch from Amazon and didn't get what I bargained for. Prerequisite projects included:
1- installing a new oversized gas line ($350)
2- z-flex thimbles and wall venting for the Bosch exhaust gases($500)
3- Mounting the heater on the newly framed basement wall ($300)
4- New plumbing and PVC air intake ($400)
Since the heater needs a .8 gpm minimum flow to turn on its burner, you can't start faucets or showers on low settings, and tasks that call for short bursts of water need to run longer to pull hot water through the line from the unit to the faucet (Hot/Cold/Hot water sandwiches). It will definitely waste a LOT more water than the old tank.
The heater operated the first time out of the box, BUT it makes a loud whistling sound when a single shower or appliance is calling for hot water. I can hear the howling from throughout the house!
Now for the most disappointing part. Although other online reviews have stated the noise/temperature fluctuations/etc are recurrent problems, the folks at Bosch Water Heating in Waitsfield, VT acted like they had not heard of the problems nor did they have any helpful solutions. We had already done every diagnostic they recommended before contacting their technical support line and then had to wait for them to ask all the same questions in the owner's manual over again.
After wasting over an hour with customer support , they offered to call a a different plumber out to troubleshoot the gas/air calibration of the unit (as others have reported in their reviews as being ineffective). I questioned why that would work any better for me than for the others and the Tech rep just fell quiet.
Hmm, sounds like a Bosch has known problems that lots of others have now posted, yet Bosch acts as if they haven't heard of them / still suggests ineffective solutions. Bosch customer service is unsatisfactory and they have lost another customer for life.