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Precision Temp TwinTemp Jr Liquid Propane Tankless Water Heater

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Are you in search of a heater that not only provides on-demand hot water, but also delivers efficient hydronic heat? Look no further! The TwinTemp Jr Propane Tankless Water Heater is the perfect choice for those seeking both instant hot water and efficient hydronic heat. With its exceptional performance and innovative features, it's specifically designed to meet the demands of RVs, Buses, Tiny Houses, Barns, and more!

Experience the convenience of on-demand hot water and the comfort of hydronic heat, all in one compact unit. The Twin Jr water heater boasts whisper-quiet operation, ensuring a peaceful environment wherever you go. Say goodbye to the unpleasant diesel smell that often accompanies traditional heaters.

Measuring just 20.5" wide x 16" deep x 14" high and weighing a mere 65 pounds, the TwinTemp Jr is designed to maximize space efficiency without compromising performance. It's a lightweight and compact solution that saves both space and gas usage, making it an ideal choice for those with limited installation options.

One of the standout features of the TwinTemp Jr Propane Tankless Water Heater is its exceptional efficiency. With no pilot light and a 35% higher efficiency rating, you can enjoy significant energy savings without sacrificing performance. This heater is fully certified to meet the ANSI Z21.10.3/CSA 4.3 standard, ensuring the highest level of safety and reliability.

Equipped with a powerful 55,000 BTU burner and one 1,500-watt electric element, the TwinTemp Jr water heater delivers outstanding heating performance. It also features one heating zone, allowing you to customize the temperature to suit your needs.

Say goodbye to complex installations! The TwinTemp Jr eliminates the need for sidewall penetration, making the setup process hassle-free. Its innovative design ensures easy installation without compromising safety or functionality.

By choosing the Precision Temp TwinTemp Jr Propane Tankless Water Heater, you're investing in a reliable, efficient, and high-performing solution that will provide you with on-demand hot water and hydronic heat, whenever and wherever you need it. Join the ranks of satisfied customers who have experienced the benefits of this exceptional product.

Order your TwinTemp Jr today and start enjoying the luxury of on-demand hot water and efficient hydronic heat in your RV, Bus, Tiny House, Barn, or any other space where reliability and performance matter. Say hello to comfort and convenience with Precision Temp!

Features:

  • One heating zone with up to six blowers
  • On-Demand Hot Water & Hydronic Heat
  • Designed specifically for RVs, Buses, Tiny Houses, Barns, and more
  • Whisper-quiet operation and no diesel smell
  • Dimensions 20.5” wide x 16” deep X 14”high
  • Weight 65 pounds
  • No pilot light and 35% higher efficiency
  • Fully certified to ANSI Z21.10.3/CSA 4.3 standard
  • 55,000 BTU burner and one 1,500 watt electric element and one heating zone
  • No sidewall penetration Lighter, compact design that saves space and gas usage

Due to supplier shortages, the painted white finish is not available on the TwinTemp models at this time.  These units are provided with a polished finish aluminum.

Hydronic Heat — Now Without Diesel:

  • Unlike diesel-only tankless water and hydronic heaters, the TwinTemp runs on propane and can be used in all motorhomes, fifth wheels, horse trailers and towables.
  • In addition to the versatility of propane, the TwinTemp Junior offers greater heating efficiency, whisper-quiet operation, and safer flue gas temperatures.

Dual-Source Unlimited Heat:

  • With a 55,000 BTU propane burner—the highest hot water output in the industry—and a 1500-watt electric element, the TwinTemp Junior delivers on-demand, continuous hot water and hydronic space heating.
  • The heater operates only when the hot water outlet is turned on. The VariFlame control system then keeps the water temperature constant, regardless of the flow rate or incoming water temperature.

More Hot Water and Heat. Less Propane:

  • With higher efficiency and 60,000 BTUs, the TwinTemp Junior produces more hot water than traditional water heaters.
  • With higher efficiencies, many people report that they use up to 50% less propane. Owners love the lower operating costs and fewer fill-ups.

 

Specifications:

  • Type:  Gas instantaneous, power vent water / space heater.  Full gas modulation temperature control.  Certified to UL 307A & ANSI Z21.10.3
  • Dimensions:  20.5 Wide x 16 Deep x 14 High.
  • Weight:  101 pounds
  • Hook-ups:  Gas, brass 3/8 flare.  Water and heating lines 1/2 FTP brass.  DC Electric, 12-2×2 lead . 110VAC – 14-3 SJO plug
  • Capacity:  Gas 55,000 BTUs input – 44,500 BTUs output @ maximum burn at 8.5 WCI manifold pressure.  15,000 BTUs input – 12,500 BTUs output @ low burn at 1.2 WCI manifold pressure (88° F temperature rise / gallon / minute continuous flow at high burn).  1-1500Watt/5100 BTU-110 Volt element
  • Gas Train:  Burner: 12 element high primary air, atmospheric type with stainless steel construction.  Orifices: Brass # 71 x 12.  Gas Valve. Redundant solenoid with integral regulator.
  • Water Assembly:  Heat exchangers: solid copper, Hook- ups, 1/2 OD copper tubes.  Water line – brazed hard copper.  PRV: Approved set @ 25 PSI.  Optional: Engine Assist and Hot Tap Dispenser.
  • Venting:  Power vent, proofing, terminating to 2” exhaust through floor of vehicle.
  • Construction:  Powder coat aluminum case.  Modular – 3 assemblies – gas, electronics and water.  Case & flue assembly are 18 gauge welded stainless steel.  Component access is through front access panel.
  • Fuel:  Propane at 11 WCI Power: 12 VDC at 4.5 Amp full operation. (Operating range 10.5 – 15 VDC)
  • Flue Gas Temperature:  Under 300° F
  • Water Temperature:  Potable water is tempered and temperature can be field adjusted for 100-145 degrees F.  HotTap: Minimum 180° F.
  • Mounting:  Flange mounts that screw to coach floor.  Must be mounted in accordance with local codes or in absence of local codes: Manufactured Home Standard, Title 24 CFR, Part 3280 or Recreational Vehicle Standard ANSI A 119.2/NFPA501C
  • Safety Features:  Pilotless, Flame rectification, Gas valve shuts off in .8 second if there is a flame outage, Redundant gas solenoid, Electronic high temperature shut-off (two), ECO high temperature shut off at 212°F with auto reset, Pressure relief valve @ 25 PSI, and Power vent with proofing.
  • Disclaimer:  Due to continuous product improvement, PrecisionTemp reserves the right to change specifications at any time.

Downloads:

Precision Temp TwinTemp Junior Liquid Propane Tankless Water Heater Installation Manual

Precision Temp TwinTemp Junior Liquid Propane Tankless Water Heater Warranty Registration

Description

Are you in search of a heater that not only provides on-demand hot water, but also delivers efficient hydronic heat? Look no further! The TwinTemp Jr Propane Tankless Water Heater is the perfect choice for those seeking both instant hot water and efficient hydronic heat. With its exceptional performance and innovative features, it's specifically designed to meet the demands of RVs, Buses, Tiny Houses, Barns, and more!

Experience the convenience of on-demand hot water and the comfort of hydronic heat, all in one compact unit. The Twin Jr water heater boasts whisper-quiet operation, ensuring a peaceful environment wherever you go. Say goodbye to the unpleasant diesel smell that often accompanies traditional heaters.

Measuring just 20.5" wide x 16" deep x 14" high and weighing a mere 65 pounds, the TwinTemp Jr is designed to maximize space efficiency without compromising performance. It's a lightweight and compact solution that saves both space and gas usage, making it an ideal choice for those with limited installation options.

One of the standout features of the TwinTemp Jr Propane Tankless Water Heater is its exceptional efficiency. With no pilot light and a 35% higher efficiency rating, you can enjoy significant energy savings without sacrificing performance. This heater is fully certified to meet the ANSI Z21.10.3/CSA 4.3 standard, ensuring the highest level of safety and reliability.

Equipped with a powerful 55,000 BTU burner and one 1,500-watt electric element, the TwinTemp Jr water heater delivers outstanding heating performance. It also features one heating zone, allowing you to customize the temperature to suit your needs.

Say goodbye to complex installations! The TwinTemp Jr eliminates the need for sidewall penetration, making the setup process hassle-free. Its innovative design ensures easy installation without compromising safety or functionality.

By choosing the Precision Temp TwinTemp Jr Propane Tankless Water Heater, you're investing in a reliable, efficient, and high-performing solution that will provide you with on-demand hot water and hydronic heat, whenever and wherever you need it. Join the ranks of satisfied customers who have experienced the benefits of this exceptional product.

Order your TwinTemp Jr today and start enjoying the luxury of on-demand hot water and efficient hydronic heat in your RV, Bus, Tiny House, Barn, or any other space where reliability and performance matter. Say hello to comfort and convenience with Precision Temp!

Features:

  • One heating zone with up to six blowers
  • On-Demand Hot Water & Hydronic Heat
  • Designed specifically for RVs, Buses, Tiny Houses, Barns, and more
  • Whisper-quiet operation and no diesel smell
  • Dimensions 20.5” wide x 16” deep X 14”high
  • Weight 65 pounds
  • No pilot light and 35% higher efficiency
  • Fully certified to ANSI Z21.10.3/CSA 4.3 standard
  • 55,000 BTU burner and one 1,500 watt electric element and one heating zone
  • No sidewall penetration Lighter, compact design that saves space and gas usage

Due to supplier shortages, the painted white finish is not available on the TwinTemp models at this time.  These units are provided with a polished finish aluminum.

Hydronic Heat — Now Without Diesel:

  • Unlike diesel-only tankless water and hydronic heaters, the TwinTemp runs on propane and can be used in all motorhomes, fifth wheels, horse trailers and towables.
  • In addition to the versatility of propane, the TwinTemp Junior offers greater heating efficiency, whisper-quiet operation, and safer flue gas temperatures.

Dual-Source Unlimited Heat:

  • With a 55,000 BTU propane burner—the highest hot water output in the industry—and a 1500-watt electric element, the TwinTemp Junior delivers on-demand, continuous hot water and hydronic space heating.
  • The heater operates only when the hot water outlet is turned on. The VariFlame control system then keeps the water temperature constant, regardless of the flow rate or incoming water temperature.

More Hot Water and Heat. Less Propane:

  • With higher efficiency and 60,000 BTUs, the TwinTemp Junior produces more hot water than traditional water heaters.
  • With higher efficiencies, many people report that they use up to 50% less propane. Owners love the lower operating costs and fewer fill-ups.

 

Specifications:

  • Type:  Gas instantaneous, power vent water / space heater.  Full gas modulation temperature control.  Certified to UL 307A & ANSI Z21.10.3
  • Dimensions:  20.5 Wide x 16 Deep x 14 High.
  • Weight:  101 pounds
  • Hook-ups:  Gas, brass 3/8 flare.  Water and heating lines 1/2 FTP brass.  DC Electric, 12-2×2 lead . 110VAC – 14-3 SJO plug
  • Capacity:  Gas 55,000 BTUs input – 44,500 BTUs output @ maximum burn at 8.5 WCI manifold pressure.  15,000 BTUs input – 12,500 BTUs output @ low burn at 1.2 WCI manifold pressure (88° F temperature rise / gallon / minute continuous flow at high burn).  1-1500Watt/5100 BTU-110 Volt element
  • Gas Train:  Burner: 12 element high primary air, atmospheric type with stainless steel construction.  Orifices: Brass # 71 x 12.  Gas Valve. Redundant solenoid with integral regulator.
  • Water Assembly:  Heat exchangers: solid copper, Hook- ups, 1/2 OD copper tubes.  Water line – brazed hard copper.  PRV: Approved set @ 25 PSI.  Optional: Engine Assist and Hot Tap Dispenser.
  • Venting:  Power vent, proofing, terminating to 2” exhaust through floor of vehicle.
  • Construction:  Powder coat aluminum case.  Modular – 3 assemblies – gas, electronics and water.  Case & flue assembly are 18 gauge welded stainless steel.  Component access is through front access panel.
  • Fuel:  Propane at 11 WCI Power: 12 VDC at 4.5 Amp full operation. (Operating range 10.5 – 15 VDC)
  • Flue Gas Temperature:  Under 300° F
  • Water Temperature:  Potable water is tempered and temperature can be field adjusted for 100-145 degrees F.  HotTap: Minimum 180° F.
  • Mounting:  Flange mounts that screw to coach floor.  Must be mounted in accordance with local codes or in absence of local codes: Manufactured Home Standard, Title 24 CFR, Part 3280 or Recreational Vehicle Standard ANSI A 119.2/NFPA501C
  • Safety Features:  Pilotless, Flame rectification, Gas valve shuts off in .8 second if there is a flame outage, Redundant gas solenoid, Electronic high temperature shut-off (two), ECO high temperature shut off at 212°F with auto reset, Pressure relief valve @ 25 PSI, and Power vent with proofing.
  • Disclaimer:  Due to continuous product improvement, PrecisionTemp reserves the right to change specifications at any time.

Downloads:

Precision Temp TwinTemp Junior Liquid Propane Tankless Water Heater Installation Manual

Precision Temp TwinTemp Junior Liquid Propane Tankless Water Heater Warranty Registration

Reviews

Questions & Answers

Have a Question?

Ask a Question
  • Is this a propane unit or natural gas ?

    Hello, 

    This unit is run with propane.  Let us know if you have any other questions.

  • Will this unit replace the Hydro Hot system without major modifications? I have a Hydro Hot # HHE-500-08M system.

    Hello, 

    The TwinTemp Junior absolutely will replace the Hydrohot with very little system modification.  The same blower heating loop, existing thermostat and wiring are used.  The TwinTemp is prewired so there’s no need for the multi-wire control panel used on the Hydrohot.  The 110 VAC element is a plug-in so requires no direct wiring connection. Installation is straight forward.
     
    Other advantages:
    * The TwinTemp is propane, not diesel, eliminating smokey, smelly and noisy exhaust.  Virtually silent compared to the Hydrohot
    * Much lighter and smaller footprint 
    * It’s 50% more efficient, producing more heat with less fuel and 12 volt power
    * Requires no annual “tuneups” like the Hydrohot
    * PrecisionTemp service is second to none.  
     
    Hope this is helpful.  Let us know if you have any other questions.  

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