Lochinvar Knight wall-mount boiler guide
The Lochinvar Knight is a familiar name in the North American hydronic market, and it’s a common choice for Metro Vancouver homeowners upgrading to a high-efficiency wall-mounted boiler. It’s a condensing boiler designed primarily for space heating, hung on the wall to free up floor space in the mechanical room.
Lochinvar is a well-established manufacturer with strong parts and support presence, which matters when you want dependable local service years down the road. The Knight line is known for its onboard controls, which give installers and homeowners good visibility into how the boiler is running.
This guide walks through what the Knight is, the homes it suits, how it’s installed and vented here, and what maintenance looks like. We keep the details general and accurate, and point you to a written HeatLand quote for the numbers specific to your home.
What the Knight boiler is
The Lochinvar Knight is a wall-mounted, condensing gas boiler built for hydronic space heating, radiators, baseboard, or in-floor systems. As a condensing boiler, it recovers heat from flue gases that a conventional boiler would waste, which is why it vents through sealed plastic venting rather than a chimney.
A defining feature of the Knight line is its modulating burner paired with capable onboard controls. Modulation lets the burner scale its output to actual demand rather than cycling fully on and off, supporting steadier comfort and efficient operation across mild and cold days. The controls provide diagnostics and can manage system features that make setup and troubleshooting more straightforward.
Because it’s wall-hung, the Knight keeps the mechanical room floor clear. For domestic hot water, it’s typically paired with an indirect tank rather than acting as a combi. HeatLand can tell you whether a heat-only Knight plus indirect tank is the right shape for your home.
Who it suits in Metro Vancouver
The Knight suits homeowners with a hydronic heating system who want a wall-mounted, high-efficiency boiler and value strong local parts and support. It’s a natural fit where you want to keep the boiler and hot-water storage as separate components, boiler on the wall, indirect tank alongside, so each can be sized and serviced independently.
Homes with significant or simultaneous hot-water demand often benefit from this heat-only-plus-indirect approach, since a well-sized indirect tank can deliver strong hot-water performance. That said, the right configuration depends on your fixtures and habits.
In our mild, damp climate, condensing boilers spend much of the heating season operating in their efficient condensing range, which rewards the investment. Lochinvar’s established support network is a practical plus for long-term ownership. HeatLand reviews your distribution type, hot-water needs, gas supply, and venting route before recommending the Knight over other options.
Installation and venting
A wall-mounted condensing boiler needs a sound wall, a proper venting plan, and condensate management. The Knight vents through sealed plastic venting with defined clearances at the termination, and it produces acidic condensate that must drain to an approved point, often through a neutralizer. Combustion-air supply has to be planned alongside the venting.
Gas supply is part of the picture: an upgrade may require a review of gas line sizing to ensure adequate flow, particularly when other gas appliances share the line. If you’re pairing the Knight with an indirect tank, the tank piping and controls are wired in during the same install, along with system flushing and commissioning.
All gas work in BC must be done by a licensed gas fitter. HeatLand is TSBC-certified, licensed, and insured, and we handle permits, venting, condensate, and commissioning together. If you smell gas or your CO alarm sounds, stop, leave the building, and call the gas utility and a licensed technician from a safe location before returning.
Service and maintenance
Like all condensing boilers, the Knight rewards annual professional maintenance. A typical service includes inspecting and cleaning the heat exchanger and burner, checking the condensate trap and neutralizer, verifying combustion, confirming safe venting, and reviewing system pressure and the onboard controls. Because the Knight’s controls log useful information, a technician can often spot developing issues early.
Keeping the condensate path clear is important, since blockages can cause faults. If the Knight is paired with an indirect tank, the tank and its controls are checked at the same visit.
HeatLand services Lochinvar and all major boiler brands. As a family-run company serving Metro Vancouver and the Fraser Valley since 1999, we provide scheduled maintenance and diagnostics for the Knight line. Regular service keeps the boiler running safely, protects efficiency, and helps you avoid a mid-winter breakdown.
Quick Checklist
- Confirm your hydronic distribution type (radiators, baseboard, in-floor)
- Decide on hot-water approach (indirect tank pairing)
- Verify adequate wall support for a wall-hung boiler
- Review gas line sizing for the upgrade
- Plan sealed venting and condensate drainage
- Book annual maintenance and know the gas-safety steps
| Factor | Lochinvar Knight |
|---|---|
| Type | Wall-mounted condensing gas boiler |
| Primary use | Hydronic space heating |
| Burner | Modulating |
| Controls | Advanced onboard diagnostics |
| Hot water | Typically paired with indirect tank |
| Venting | Sealed plastic, with condensate drainage |
Frequently Asked Questions
Does the Knight make domestic hot water on its own?
The Knight is primarily a heat-only boiler, so it’s usually paired with an indirect tank to supply domestic hot water. This keeps the boiler and hot-water storage as separate, independently sized components. HeatLand can recommend the right tank pairing for your household’s hot-water demand.
Is a wall-mounted boiler harder to install?
A wall-mounted boiler needs a sound wall, a proper venting route, and condensate drainage, all standard parts of a professional install. The benefit is a clear mechanical-room floor. HeatLand handles wall mounting, venting, gas connection, and commissioning as one licensed job.
Why choose Lochinvar Knight over other brands?
Homeowners often value the Knight’s modulating burner, capable onboard controls, and Lochinvar’s established parts and support network, which helps with long-term service. The right choice still depends on your home. HeatLand compares options fairly and services all major brands, so our recommendation fits your needs, not a single line.
What should I do if I smell gas?
Stop, leave the building immediately, and from a safe location call your gas utility and a licensed gas technician. Do not operate switches or flames, and treat a sounding CO alarm the same way. Never attempt gas repairs yourself; all gas work in BC requires a licensed fitter.
Reviewed by the HeatLand Heating & Cooling team — licensed HVAC contractor serving Metro Vancouver & the Fraser Valley since 1999. Specifications and rebate programs change; confirm current details with a written quote and with CleanBC/FortisBC. If you smell gas or your CO alarm sounds, stop, leave the home, and call a licensed technician or 911.