Sales & Customer Service
Office Hours: Mon-Fri - 5:00am-5:00pm PST
Sat-Sun - 10:00am-2:00pm PST
Toll Free: 1-877-998-WEST (9378) Email: Links:
Free Shipping On All Orders Over $99

Bosch Tankless Water Heater, Liquid Propane 117,000 BTU Max Piezo Ignition Non-Condensing Whole House - Indoor. 5.2 GPM

Bosch Therm 520 PN LP

SKU: 826563
Our Price: $674.99
+ FREE Shipping
Available to ship by: May 2, 2014

Click to view pallet pricing

Add 3 more to get 5% off! ($641.24 each)

Ask a Question
About this Product

Purchase 1 piece, and earn 44 Westside Dollars

View All Bosch Tankless Water Heaters

Bosch Therm 520 PN LP


Product Information:

About the Bosch Therm Non-Condensing Tankless Water Heater for 1-2 Bathrooms, Piezo Ignition, Indoor – Liquid Propane

The Bosch name has resonated within millions of households, and with 125 years of experience backing their products, Bosch is still continuously evolving. With recent innovations displayed from Bosch products, water heating and plumbing has been revolutionized to be more space-saving, energy-saving and efficient. Bosch’s products are a clear example of a step into the future, as well as the advancements in progress for the company.

The Bosch 520 PN LP utilizes liquid petroleum (propane) to produce 117,000 BTUs per hour at a maximum. This non-condensing tankless water heater features attributes that are space saving, and does not require electricity. Rather, the unit utilizes a crystal to create a spark onto the pilot light, eliminating the need for a battery or electrical source. This is easily controlled by a knob switch which creates a spark, similar to a gas range. The 520 PN LP is best suited for conditions where electricity is either scarce or where outages are plentiful. The 520 PN LP requires a 0.5 GPM activation flow rate and has a temperature range from high to low. Although the unit is compact, it can be able to supply two running water supplies constantly with hot water. Power is never compromised with large energy consumption; the Bosch Therm 520 PN has a 78% thermal efficiency rating.

The Bosch 520 PN LP is best used for your residential application and can be used in altitudes of up to 4,500 ft. Bosch backs all of these great features with the industry leading 15-year warranty and a product life expectancy of over 20 years. Bosch also has made their units 100% serviceable, allowing for your next purchase to last a lifetime ahead.

Additional Product Information:


• Suitable for indoor use
• 78% thermal efficiency
• 117,000 BTU maximum input
• 5.2 gallons per minute capacity at 35F degree rise
• Minimum activation flow rate of 0.5 gallons per minute
• Patented burner design
• Exclusive safety controls
• Piezo Ignition utilizes a crystal spark to generate voltage, requiring no electricity
• Built for durability and serviceability with 15 Year Warranty and 20+ Years Product Life Expectancy


• Condensing/Non-Condensing: Non-Condensing
• Application: Residential
• Max Input (BTU): 117,000
• Min Input (BTU): 30,725
• Capacity at 35°F Rise (gpm): 5.3
• Capacity at 55°F Rise (gpm): 3.4
• Intelligent Cascading: No
• Min Flow Rate: High - Low
• Temp Range (°F): N/A
• Temp Stability (°F): N/A
• Default Temp (°F): High - Low
• Energy Factor: -
• Thermal Efficiency: 78%
• 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: 1/2" NPT
• Max Water Pressure: 150 psi
• Min Water Pressure: 30 psi
• Condensing Heat Exchanger: N/A
• Venting Options: Galvanized B-Vent
• Vent Maximum Run: N/A
• Energy Star Rated: No

Customer Reviews

There are no reviews for this product yet. Be the first to review the product!

Write Your Own Review:

 1 star2 stars3 stars4 stars5 stars

Submit Review

Questions & Answers

Please login or register before adding a question.

If you are a new customer, please register first: