MRCOOL Natural Gas Tankless Water Heater - MHWH199NCNU

Looking for a tankless water heater that will bring endless comfort in your tiny home? The MRCOOL Natural Gas Tankless Water Heater is the water heater for you! Unlike traditional water heaters, the MrCool® Natural Gas Tankless Water Heater provides neverending hot water to up to four bathrooms and multiple home appliances simultaneously. With a high volume and flow rate, this tankless heater is highly efficient while still being environmentally friendly.

This compact and space-saving heater has a much longer lifespan thanks to the stainless steel, corrosion resistant engineering. This design has four times the corrosion resistance of copper and is lead free. One of the many high tech features of this unit is the electronic thermostatic PCB, which provides intelligent temperature control and gas flow that is automatically controlled. The EDM BLDC variable-speed fan provides stable combustion along with a smooth air flow transition. The combustion chamber is surrounded by water tubes making it a thermal insulator also. The environmentally-friendly premixed burner gives a reduction of NOx emissions, lowers the flame temperature, and reduces port-loading.

You can experience the most comfortable shower experience thanks to the self-adapting temperature regulation. A large touch-screen display provides helpful information to you and your plumber about the heater’s operation. This unit must be installed by a professional and offers a 15-year heat exchanger warranty, a 5-year parts warranty, and a 5-year service warranty. This MrCool® Natural Gas Tankless Water Heater will replace your old water heater and provide efficiency and effectiveness so warm your water with the MRCOOL Natural Gas Tankless Water Heater today!

This unit must be installed by a professional

Features:

Meets SCAQMD Standards
Not mobile home compatible
UNSPSC: 52141700
Temperature: Min Temp: 95°F Max Temp: 140°F
Wattage: 150 W (+114 W when anti-freeze module is on)
Maximum Gallons per Minute: 8.45g/min
Flow Rate @ 35°F Rise (gallons/min): 10.7
Flow Rate @ 45°F Rise (gallons/min): 8.3
Flow Rate @ 55°F Rise (gallons/min): 6.8
Flow Rate @ 65°F Rise (gallons/min): 5.8
Uniform Energy Factor (UEF): 92%
PSI: 7-140

Stable Temperature Control System:

Specifications:

Rated Water Output Capacity: 32 L/min
Nominal Power / Rated Heat Input: 199,000 BTU/h
Ignition Type: Direct Electric Ignition
Suitable water pressure: 70-140Psi
Gas inlet: NPT3/4
Cold inlet water: NPT3/4
Hot outlet water: NPT3/4
Flue pipe / Chimney diameter: 2” or 3”
Rated Voltage / Freq: 120V AC,60Hz
Efficiency: 92%
Certification: CSA
Energy Star Certified: Yes
Wifi Compatibility: No
Net Weight: 68.34 lbs (31kg)
Gross Weight: 73.85Lbs (33.5 kg)
Product dimensions (inches): 26.8” × 17.3” × 11.0”
Packaging dimensions (inches): 33.2” × 20.3” × 13.7”
Loading Qty (200P/400P/40HQ): 188/ 380/ 454

Proposition 65 Warning:

Warning: This product contains chemicals known to the state of California to cause cancer and birth defects or other reproductive harm. www.p65warnings.ca.gov.

Downloads:

MRCOOL Liquid Propane Tankless Water Heater Install Manual

MRCOOL Liquid Propane Tankless Water Heater Warranty Doc

Description

This unit must be installed by a professional

Features:

Meets SCAQMD Standards
Not mobile home compatible
UNSPSC: 52141700
Temperature: Min Temp: 95°F Max Temp: 140°F
Wattage: 150 W (+114 W when anti-freeze module is on)
Maximum Gallons per Minute: 8.45g/min
Flow Rate @ 35°F Rise (gallons/min): 10.7
Flow Rate @ 45°F Rise (gallons/min): 8.3
Flow Rate @ 55°F Rise (gallons/min): 6.8
Flow Rate @ 65°F Rise (gallons/min): 5.8
Uniform Energy Factor (UEF): 92%
PSI: 7-140

Stable Temperature Control System:

Specifications:

Rated Water Output Capacity: 32 L/min
Nominal Power / Rated Heat Input: 199,000 BTU/h
Ignition Type: Direct Electric Ignition
Suitable water pressure: 70-140Psi
Gas inlet: NPT3/4
Cold inlet water: NPT3/4
Hot outlet water: NPT3/4
Flue pipe / Chimney diameter: 2” or 3”
Rated Voltage / Freq: 120V AC,60Hz
Efficiency: 92%
Certification: CSA
Energy Star Certified: Yes
Wifi Compatibility: No
Net Weight: 68.34 lbs (31kg)
Gross Weight: 73.85Lbs (33.5 kg)
Product dimensions (inches): 26.8” × 17.3” × 11.0”
Packaging dimensions (inches): 33.2” × 20.3” × 13.7”
Loading Qty (200P/400P/40HQ): 188/ 380/ 454

Proposition 65 Warning:

Warning: This product contains chemicals known to the state of California to cause cancer and birth defects or other reproductive harm. www.p65warnings.ca.gov.

Downloads:

MRCOOL Liquid Propane Tankless Water Heater Install Manual

MRCOOL Liquid Propane Tankless Water Heater Warranty Doc

Reviews

Questions & Answers

Have a Question?

Be the first to ask a question about this.

Ask a Question

Let customers speak for us

from 261 reviews

These are great for houses where you have trouble installing regular systems

I have an old house where it is impossible to install venting, etc. for the regular heat and air conditioning. I have mini splits and they work great for any area. I have 2 Senville mini splits and I love them. Quiet, efficient and get the job done.

Marilyn Rizzardo

11/24/2024

Senville LETO 9000 BTU Mini Split Air Conditioner and Heat Pump - SENL/09CD/220V

Propane heater

Is a small propane heater. It works pretty good for a small cabin , RV etc. Dont need electricity. Just a small propane tank. Dont consume alot . A small tank will last about 3 day if you run it at full capacity though the night. No propane small, no carbon monoxide. It has a vent for the out side. But this 8 thousand btu is not for a whole house heat.

Henry De pena

10/08/2024

Martin Direct Vent Thermostatic Wall Mounted Heater 8,000 Btu

Great Sevice and follow up

Purchased a Senville 24k Concealed duct that was on back order but they kept me informed throughout process. Shipped immediately once back in stock, its now installed and could not be happier.

Kevin Daniels

10/03/2024

Senville AURA 24000 BTU Mini Split Concealed Duct Air Conditioner and Heat Pump - SENA/24HF/ID

Thank you

Ordered an item that was on back order. Took a long time to get but Tiny houses communicated the best they could through out the process. Have not installed you but impressed with what I’ve received.

Aaron Dukehart

09/05/2024

Senville 20 Ft. Line Set Cover Kit for Mini Split AC

Great value

It’s so far been a great system. Works like it’s supposed to.

Chuck Mak

08/01/2024

Senville AURA 24000 BTU Mini Split Concealed Duct Air Conditioner and Heat Pump - SENA/24HF/ID

Senville 12k

Excellent product. Delivered with no problems.

Kristine Kolsch

07/28/2024

Senville LETO 12000 BTU Mini Split Air Conditioner and Heat Pump - SENL/12CD/220V

They are awesome. Very quiet

Deborah Daw

07/06/2024

Senville LETO 9000 BTU Mini Split Air Conditioner and Heat Pump - SENL/09CD/110V

Senville AURA 24000 BTU Mini Split Concealed Duct Air Conditioner

The purchase of the A/C system from TinyHouseEssentials was a smooth process with amazing communication from the time of purchase straight to after delivery... great transaction, great company.. will most definitely do business again.

Kenny Knowles

06/14/2024

Senville AURA 24000 BTU Mini Split Concealed Duct Air Conditioner and Heat Pump - SENA/24HF/ID

Sorry it won't be installed for another month. Area under construction now.

Glenn Howell

05/23/2024

Senville 18000 BTU Ceiling Cassette Air Conditioner - Heat Pump - SENA/18HF/IC

Wonderful

This compost toilet is the best. I even took off all the extras because it's really not needed. I plugged the pee bottle off. I'm not emptying urine. Love it so much I ordered 2 more for my home.

Tamie Hill

05/14/2024

Sun-Mar GTG Urine Diverting Compost Toilet

Good service.

The product good.

Heinrich Banman

04/03/2024

Senville 3 Piece Wall Bracket for Mini Split

Thinktank

Won't be installing for another month, but everything is there and as described.

Thomas Turka

03/30/2024

Thinktank Waterless Composting Toilet

Martin Heater

Great off grid heater. Works great

Willaim Pennell

03/17/2024

Martin Direct Vent Thermostatic Wall Mounted Heater w/window 20,000 Btu

Second Senville mini split that I have bought from these guys. Great price and free shipping. Heat pump run flawlessly.

J.D.

02/20/2024

Senville AURA 28000 BTU Mini Split Multi Zone Air Conditioner and Heat Pump - SENA/30HF/D

Ideal Solution

We had a complicated set of requirements. The ThinkTank and helpful folks at Tiny House Essentials resolved our conundrum. The ThinkTank just arrived, but we won't install it until late next month. Cabin building in remote areas takes time, after all. If possible, I'll submit an addition to this review (with pics) after we get it installed and use it for a month or so! :-)
- PEB

David DiCenso

01/23/2024

Thinktank Waterless Composting Toilet

Batteries

Composting & Waterless Toilets

Inverter Chargers

Portable Generators

Gas Heaters

Solar Generators

Solar Kits

Solar Panels

Water Heaters

Wind Turbines

Batteries.

Composting & Waterless Toilets.

Gas Heaters

Inverter Chargers

Portable Generators

Portable Solar Kits

Portable Solar Panels

Solar Kits.

Water Heaters.

Wind Turbines

110-115V Mini Split Systems

208-230V Mini Split Systems

9000 BTU Mini Splits

12000 BTU Mini Splits

18000 BTU Mini Splits

24000 BTU Mini Splits

28000 BTU Mini Splits

30000 BTU Mini Splits

36000 BTU Mini Splits

48000 BTU Mini Split Systems

Ceiling Cassette Mini Split Systems

Concealed Duct Mini Split Systems

Multi Zone Mini Splits

Single Zone Mini Splits

MRCOOL Natural Gas Tankless Water Heater - MHWH199NCNU

***This unit must be installed by a professional***

Features:

Stable Temperature Control System:

Specifications:

Downloads:

MRCOOL Liquid Propane Tankless Water Heater Install Manual

MRCOOL Liquid Propane Tankless Water Heater Warranty Doc

Description

***This unit must be installed by a professional***

Features:

Stable Temperature Control System:

Specifications:

Downloads:

MRCOOL Liquid Propane Tankless Water Heater Install Manual

MRCOOL Liquid Propane Tankless Water Heater Warranty Doc

Reviews

Customer Reviews

Questions & Answers

Have a Question?

Recently viewed products

Let customers speak for us

This unit must be installed by a professional

This unit must be installed by a professional