Ideal Heating · Exalt Wall Combi
Ideal Exalt Wall Combi 199
The Ideal Exalt Wall Combi 199 is the larger wall-hung combi: 24,875 to 199,000 BTU/h heating input at 95% AFUE with on-demand DHW at 5.3 GPM at a 70°F rise and 3-inch venting up to 100 feet.
Key figures
- Max input
- 199 MBH
- Max CSA output
- —
- AFUE
- 95 %
- Min input
- 24.875 MBH
Input is gas energy consumed; output is heat delivered. Never size from input alone.
Ideal Exalt Wall Combi 199 in practice
The Exalt Wall Combi 199 is the top combi in the Exalt Wall family, pairing a 24,875 to 199,000 BTU/h heating range (8:1 turndown, 95% AFUE, 184 MBH DOE capacity, 159 MBH AHRI net rating) with the series' highest published DHW delivery: 5.3 GPM at a 70°F rise, 4.9 GPM at 75°F and 4.6 GPM at 80°F.
The cabinet measures 21.75 x 33 x 16.5 inches and weighs 128 lb with 4 gallons of water volume. Connections are 3/4-inch gas, 1-inch heating supply/return and 3/4-inch DHW, with a 150 psi maximum DHW pressure and a 150°F (65°C) DHW temperature limit. The model table lists 3-inch venting up to 100 equivalent feet for the 199 combi; the 2-inch option is specific to the 155 combi.
CTRLMax control features carry over, including DHW priority, outdoor reset and plain-text diagnostics. The combi 199 is the choice where hot-water demand, rather than the heating load, drives the sizing decision — two simultaneous showers can exceed the combi 155's published draw. Natural-gas (IDEX199C) and propane (IDEX199CLP) versions are published. No explicit Canadian sales statement was found on the official pages checked on 2026-09-09; the Exalt and Gallant submittals list ANSI Z21.13 and CSA 4.9 compliance, so Boilers.ca records canadianStatus as unknown.
Best suited to
- Larger homes wanting one wall-hung appliance for heat and hot water
- Households whose simultaneous DHW demand exceeds the combi 155's 4.0 GPM
- Installations needing the full 199 MBH heating range in combi form
Applicability and support
- Model number
- IDEX199C (NG) / IDEX199CLP (LP)
- Canadian availability
- unknown
- Production status
- current
- ROMA supplies
- Confirmed at consultation
- ROMA services
- Confirmed at consultation
- Warranty
- Series terms
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 Ideal Heating. Units are shown with every value; notes flag conflicting sources or missing figures.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Input, minimum (NG & LP) | 24.875 MBH | 24,875 BTU/h per the official model table |
| Input, maximum (NG & LP) | 199 MBH | 199,000 BTU/h per the official model table |
| Output | ||
| DOE heating capacity | 184 MBH | Per the official model table. |
| AHRI net rating | 159 MBH | Per the official model table. |
| Efficiency | ||
| Efficiency (AFUE) | 95 % | 95% AFUE per the official model table. |
| Domestic hot water | ||
| DHW output at 70°F rise | 5.3 GPM | Per the official model table. |
| DHW output at 75°F rise | 4.9 GPM | Per the official model table. |
| DHW output at 80°F rise | 4.6 GPM | Per the official model table. |
| DHW minimum flow rate | 0.5 GPM | Per the official model table. |
| DHW maximum operating pressure | 150 psi | Per the official model table. |
| Domestic inlet / outlet connections | 3/4 in | |
| Maximum DHW flow temperature | 150 °F | 150°F (65°C) per the official model table. |
| Domestic hot water | Combi: on-demand DHW via an integrated plate heat exchanger | |
| Venting and air | ||
| Vent / air connections | 3 in | |
| Maximum vent length, 3 in | 100 ft | Per the official model table. |
| Physical and connections | ||
| Weight | 128 lb | |
| Width | 21.75 in | |
| Height | 33 in | |
| Depth | 16.5 in | |
| Operating limits and other | ||
| Turndown ratio | 8:1 | Per the official model table. |
| Gas connection (MNPT) | 3/4 in | |
| Supply / return connections (MNPT) | 1 in | |
| Water volume | 4 gal | Per the official model table. |
| Maximum CH flow temperature | 185 °F | 185°F (85°C) per the official model table. |
Manuals
Alerts documented for this model
Frequently asked questions
How much more hot water does the combi 199 deliver than the combi 155?
DHW output rises from 4.0 to 5.3 GPM at a 70°F rise, from 3.7 to 4.9 GPM at 75°F and from 3.5 to 4.6 GPM at 80°F, per the official model table.
What is the heating input range of the Exalt Wall Combi 199?
24,875 to 199,000 BTU/h at 95% AFUE with an 8:1 turndown, a 184 MBH DOE heating capacity and a 159 MBH AHRI net rating.
Which vent sizes does the combi 199 accept?
The model table lists 3-inch venting up to 100 equivalent feet. The 2-inch vent option is published for the combi 155 only.
Questions about the Ideal Exalt Wall Combi 199?
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
- Ideal Heating NA — Exalt Wall Combi product page and model table · accessed September 9, 2026
- Ideal Heating NA — Exalt 199 combi submittal (2023-86) · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.