Laars Heating Systems · NeoTherm XTR
Laars NeoTherm XTR NT2H 800
The Laars NeoTherm XTR NT2H 800 is a commercial condensing boiler rated 80-800 MBH input and 77.1-771 MBH output at 96.4% AHRI thermal efficiency, with 7.4 gallons of water content and a 618 lb shipping weight.
Key figures
- Max input
- 800 MBH
- Max CSA output
- 771 MBH
- AFUE
- —
- Min input
- 80 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Laars NeoTherm XTR NT2H 800 in practice
The NT2H 800 is the 800 MBH size of Laars' NeoTherm XTR natural-gas commercial condensing boiler line. The Document 1477 submittal sizing table lists 80-800 MBH input, 77.1-771 MBH output, 96.4% AHRI-certified thermal efficiency and 98.5% combustion efficiency, with 7.4 gallons of water content, a 492 lb product weight and a 618 lb shipping weight.
The XTR platform uses a dual-venturi combustion system, a stainless-steel low-pressure-drop heat exchanger and the Laars Linc touchscreen control with cascade up to eight units and Vari-Prime pump control; the product page headlines 96% thermal efficiency and 10:1 turndown. The I&O manual (Document 1475C) covers the NT2H boiler and NT2V volume water heater versions, and the same document set is listed on the Canadian site.
Best suited to
- Commercial hydronic loads near 800 MBH input
- Buildings standardizing on the Laars Linc control platform
- Projects that want the printed AHRI thermal efficiency for comparison
Applicability and support
- Model number
- NT2H 800
- Canadian availability
- available
- Production status
- current
- ROMA supplies
- Confirmed at consultation
- ROMA services
- Confirmed at consultation
- Warranty
- Not verified
Where ROMA provides on-site service
On-site service is currently offered in Greater Vancouver, BC, including Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North Vancouver, West Vancouver, New Westminster, Port Coquitlam, Port Moody, Delta, Langley, Maple Ridge, Abbotsford, Chilliwack, White Rock, Pitt Meadows, Tsawwassen, Anmore, Lions Bay, Belcarra, Bowen Island, Mission. Everything else on this site is reference information you can use anywhere in Canada.
Specifications
Published specifications
Values as published by Laars Heating Systems. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Input, minimum | 80 MBH | Per the Document 1477 submittal sizing table. |
| Input, maximum | 800 MBH | Per the Document 1477 submittal sizing table. |
| Output | ||
| Output, minimum | 77.1 MBH | Per the Document 1477 submittal sizing table. |
| Output, maximum | 771 MBH | Per the Document 1477 submittal sizing table. |
| Efficiency | ||
| Efficiency (thermal) | 96.4 % | AHRI-certified thermal efficiency per the Document 1477 submittal. |
| Efficiency (combustion) | 98.5 % | Combustion efficiency per the Document 1477 submittal; the sizing table prints two combustion-efficiency rows per model and this record uses the first. |
| Physical and connections | ||
| Shipping weight | 618 lb | Product weight 492 lb, operating weight 554 lb per the submittal. |
| Water content | 7.4 gal | Per the Document 1477 submittal. |
| Operating limits and other | ||
| Turndown | 10:1 | Printed on the NeoTherm XTR product page. |
Manuals
Alerts documented for this model
None documented yet.
Frequently asked questions
What are the NeoTherm XTR NT2H 800 ratings?
The Document 1477 submittal lists 80-800 MBH input, 77.1-771 MBH output and 96.4% AHRI thermal efficiency.
What turndown does the XTR have?
The product page prints a 10:1 turndown ratio for the NeoTherm XTR line.
What control does the XTR use?
The Laars Linc touchscreen control with plain-language diagnostics, cascade up to eight units and BMS compatibility, paired with Vari-Prime pump control.
Questions about the Laars NeoTherm XTR NT2H 800?
Describe what the boiler is doing and get a straight answer about the next step.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Sources and verification
- Laars — NeoTherm XTR product page · accessed September 9, 2026
- NeoTherm XTR Boiler Submittal, Document 1477 · 1477 · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.