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Bosch 520 HN LP 117,000 BTU Indoor Tankless Water Heater LP Gas 7703431996

Brand & Part #: Bosch 520 HN LP

Our SKU #: bos520hnlp

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Description For Bosch 520 HN LP

Manufacturer Info

Bosch
See All Bosch Products

Helpful Information

Product Features :

  • Hydro-generated ignition 
  • 80% average efficiency
  • Venting: 5" double-wall type B vent - natural draft
  • Modulating gas valve - constant temperature at varying flow rates
  • Available in natural gas (NG) or liquid propane (LP)
  • No Electricity Required
  • Also know as: GWH-520-HN-L

Specifications:

  • Condensing/Non-Condensing: Non-Condensing
  • Application: Residential
  • Max Input (BTU): 117,000
  • Min Input (BTU): 30,735
  • Capacity at 35 F Rise (gpm): 5.2
  • Capacity at 55 F Rise (gpm): 3.4
  • Intelligent Cascading: No
  • Min Flow Rate: 0.6 gpm
  • Temp Range (F): n/a
  • Temp Stability (F): n/a
  • Default Temp (F): n/a
  • Thermal Efficiency: 80%
  • Installation Options: Indoor
  • Dimensions (w x h x d): 18-1/2" x 36-3/4" x 10-1/2"
  • Weight (lbs.): 35
  • Inlet Connection: 1/2" NPT
  • Outlet Connection: 1/2" NPT
  • Gas Connection: 3/4" NPT
  • Max Water Pressure: 150 psi
  • Min Water Pressure: 30 psi
  • Min NG Presure: 5.7" WC
  • Condensing Heat Exchanger: n/a
  • Venting Options: Galvanized B-Vent
  • Vent Maximun Run: n/a
  • Energy Star Rated: No


Bosch 520 HN LP is also known as 520 HN LP , 520HNLP , 52575105215

Bosch 520 HN LP 117,000 BTU Indoor  Tankless Water Heater LP Gas 7703431996

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Product Details

MPN 520 HN LP
UPC 52575105215
Brand Bosch
Water Heater Type Tankless Water Heaters
Fuel Type Liquid Propane
GPM (Flow Rate) 0.6
BTU Input 117000
Install Location Indoor
Height 36.75 Inches
Product Reviews for Bosch 520 HN LP 117,000 BTU Indoor Tankless Water Heater LP Gas 7703431996
4.7 / 5
Price
Value
Quality

Installing the Bosch 520 HN LP Tankless Water Heater (About the Bosch 520 HN LP)

Review by on Thursday, March 13, 2014

Before I received the water heater from Home Perfect, I reviewed YouTube videos of the product. They were very helpful. Upon receipt of the unit, I inspected the box and found no damage. I installed the unit myself. I am a DIYer and prefer to do it myself so I can learn about the usage and care of the product. I read previous reviews on this product on other sites all of which were not so favorable on this model. I like the technology of the NO ELECTRICITY used as I am on Solar Panels, wind mill, and propane stand-by generator. The installer should pay special attention to the service size of the fuel line and be mindful of the amount of fuel other appliances use in the home i.e (range, clothes dryer, propane fireplace, and water heater) all must have a service regulator at the propane or natural gas entry point to accommodate all of the appliances at the same time. I found that other complaints were with the use of the Delta Cartriged Shower Faucets. I have no problem with this. The tank is temperature adjustable, when using the shower, just turn on the hot water and the temperature should be perfect for your shower without using cold water from you shower faucet.
Four years ago I installed an RV version tankless water heater on my 40' Fifth Wheel and am loving it.
I would suggest that you install or have your plumber order and install the Rheem RTG20220AB Webstone Tankless Water Heater Service Valve Kit which makes it easy for flushing the water heater every year getting the scaling build-up out, which occurs with hard water going through the unit at high temperatures. You can review the valve operation and installation on YouTube as well.
You should be aware that venting this through the side wall horizontally will require a power vent which uses electricity. I opted for a six foot stack of 5 inch B-Vent Stove pipe straight up through the roof available On-Line through HomeDepot.com.
Good Luck with your unit.

4.0 / 5
Price
Value
Quality

Great unit, broken lobe on ignition unit control box (About the Bosch 520 HN LP)

Review by on Sunday, February 16, 2014

The unit works great, but we discovered a broken plastic lobe on the top right of the control box. It is connected with a screw through that lobe. The control box broke away from the intact lobe and we have to put the box back in place with double sided tape.

4.0 / 5
Price
Value
Quality

Great unit, broken lobe on ignition unit control box (About the Bosch 520 HN LP)

Review by on Sunday, February 16, 2014

The unit works great, but we discovered a broken plastic lobe on the top right of the control box. It is connected with a screw through that lobe. The control box broke away from the intact lobe and we have to put the box back in place with double sided tape.

2.0 / 5
Value
Quality
Price

should have stayed with hot water tank (About the Bosch 520 HN LP)

Review by on Sunday, September 29, 2013

it takes a while for the water to get hot. If you turn off the shower to soap up you must go through the whole process again; having the water get cold before getting hot

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