High-Efficiency
LT Tankless Water Heater
The LT Series condensing tankless water heater is powered by a commercial-grade SS heat exchanger, and has a high temp output of 185F / 85C (199 model).
Find a Distributor
Commercial Installs Have Never Been Easier!
Laars RightSpec® Sizing Tool makes product selection fast, easy and accurate!
Commercial Rack System
Flexible rack mount system allows for quick installation with option for side-by-side or back-to-back configuration. (199 model)
Common Vent Options
US: PVC, CPVC, and PolypropyleneCanada: Polypropylene
Cascade Easy Plumbing Manifold Kit (199 model)
Max Temperature Set Point of 185oF / 85oC (199 model)
Cascade with Recirc Loops
Combine Standard and up to two Recirc models to save time and lower cost on cascades with recirculation.
Designed for Long Life
- Robust stainless steel heat exchanger is durably constructed with an oval pipe design for maximized heat transfer and long life.- The oval design creates less scale build-up, increased thermal efficiency and lower maintenance. The unique design boasts an increased life cycle of 3.5 times more than a copper heat exchanger.
- A burner control and combustion system that reduces dust build-up for fewer maintenance issues.
Base and Extension Racks
Available for back-to-back or in-line mounting
Easy Plumbing Manifold Kit
Kit includes: Inlet and outlet water pipe manifolds, gas pipe manifold, 150 psi PRV, shut off valves, end caps, mounting struts and pipe clamps, and coupling, unions and adapters.
Venting Configuration
Non-return valves for common PVC and CPVC venting.
Polypropylene common venting kit conveniently sized to match our rack and plumbing manifold kits.
LT Tankless Water Heater Details
| Doc No | Rev | Category | Description | View | |||
|---|---|---|---|---|---|---|---|
| Applications Manuals | Applications Manuals | ||||||
| 2199 | Manuals | LT Series Tankless Water Heater Applications Manual | Download | ||||
| 2224 | Manuals | 150 Recirc Model, Parts List. | Download | ||||
| Brochures | Brochures | ||||||
| 2181 | D | Brochures, Sales Literature | LT Series Tankless Water Heater Brochure (150 MBH or 199 MBH) | Download | |||
| 2210 | B | Brochures, Sales Literature | LT Tankless Water Heater Brochure | Download | |||
| 2214 | B | Brochures, Sales Literature, Parts | Commercial Selection Guide | Download | |||
| 9305 | Brochures, Sales Literature | Field Service Kit | Download | ||||
| Install and Operating Manuals | Install and Operating Manuals | ||||||
| 2182 | B | Manuals | 199 Standard model, includes Parts. | Download | |||
| 2192 | C | Manuals | 199 Recirc model, includes Parts. | Download | |||
| 2222 | B | Manuals | LT Series Wall-Mounted, Modulating Gas Condensing Water Heater (150 MBH) Install and Operating Manual | Download | |||
| 2222 | B | Manuals | 150 Standard Model | Download | |||
| 2222FR | B | French Documents, Manuals | LT Series Wall-Mounted, Modulating Gas Condensing Water Heater (150 MBH) Install and Operating Manual - FRENCH | Download | |||
| 2222FR | B | French Documents, Manuals | 150 Standard Model | Download | |||
| 2223 | B | Manuals | LT Series Wall-Mounted, Modulating Gas Condensing Water Heater (Recirc model,150 MBH) | Download | |||
| 2223 | B | Manuals | 150 Recirc Model | Download | |||
| 2223FR | B | French Documents, Manuals | LT Series Wall-Mounted, Modulating Gas Condensing Water Heater (Recirc model,150 MBH) FRENCH | Download | |||
| 2223FR | B | French Documents, Manuals | 150 Recirc Model | Download | |||
| Kit Instructions | Kit Instructions | ||||||
| 7038 | Manuals | On Demand Kit | Download | ||||
| 7039 | Manuals | Outdoor Kit | Download | ||||
| 7040 | Manuals | Pipe Cover Kit | Download | ||||
| 7041 | Manuals | Rack System | Download | ||||
| 7042 | Manuals | Recirc Cascade | Download | ||||
| 7043 | Manuals | Standard Cascade | Download | ||||
| Master Formats | Master Formats | ||||||
| 5094-28 | Master Format Documents | Master Format Document | Download | ||||
| Parts Lists | Parts Lists | ||||||
| 2201 | - | Manuals | Standard model | Download | |||
| 2233 | A | Parts | LT Tankless Water Heater Replacement Parts - LT150NXX1 and LT150PXX1 | Download | |||
| 2233 | A | Parts | 150 Standard Model, Parts List. | Download | |||
| 2234 | A | Parts | LT Tankless Water Heater Replacement Parts - LT150NRX1 and LT150PRX1 | Download | |||
| Start Up Guides | Start Up Guides | ||||||
| 9307 | B | Brochures, Sales Literature | LT Tankless Quick Reference Guide | Download | |||
| Submittal Data | Submittal Data | ||||||
| 2184 | C | Submittal Documents | Submittal Data, Standard model | Download | |||
| 2184_FR | B | French Documents | Standard Model | Download | |||
| 2198 | C | Submittal Documents | Submittal Data, Recirc model | Download | |||
| 2198_FR | B | French Documents | LT Series, Water Heater, Submittal Data, Recirculation Model, FRENCH | Download | |||
| 2203 | Submittal Documents for Accessories and Controls | Cascade Rack | Download | ||||
| 2204 | Submittal Documents for Accessories and Controls | Non-Return Valve | Download | ||||
| 2204-FR | French Documents | Non-Return Valve - French | Download | ||||
| 2205 | Submittal Documents for Accessories and Controls | Manifold | Download | ||||
| 2206 | Submittal Documents for Accessories and Controls | PP Common Vent Kit | Download | ||||
| Warranty | Warranty | ||||||
| 8072 | B | Warranty | LT Series Tankless Water Heater | Download | |||
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