HYDRONIC
Boilers & hydronic
New boiler systems and replacements, piped clean.
- Boiler installs and replacements
- Hydronic piping, pumps and zoning
- Systems pre-assembled in the shop
// Refrigeration · Heating · CoolingHeat from the ground up.
Boilers, radiant in-floor heat and geothermal, built in the shop and installed clean. For homes and commercial jobs around Fergus.
SUPPLY ▲ hot
RETURN ▼ cool
A real TJL boiler roomRETURN ▼ cool
Founded2018Owner-run since day one
In the trade18 yrsOwner's hands-on experience
HPAC Sweet Heat 20242×Nominated: new build and retrofit
// How it works
What's really going on in there.
We make it easy. Two real systems, drawn the way they're actually piped. Orange is hot supply, blue is cooler return.
// Hydronic boiler system
A boiler room, explained.
The setup in TJL's photos: a wall-hung IBC condensing boiler, pumps, an expansion tank, PEX manifolds and an indirect hot water tank.
Rads supply50–70°Ctypically, on cold days
In-floor water30–45°Ctypically, after mixing
Return to boilerunder ~55°Ctypically, so it condenses and runs efficiently
- Boiler heats the water. The wall-hung IBC condensing boiler burns gas and heats the water. Its own pump sends it out.
- Boiler pump pushes hot water to the main pipes.
- Closely spaced tees join the boiler to the house pipes, so each pump can run on its own without fighting the others.
- Air separator sits on the hot supply, where it pulls out air bubbles best.
- Expansion tank soaks up the water as it expands when heated. It sits just before the pumps so pressure stays steady.
- Zone pumps push water out to each zone. Hot water usually goes first (priority), so showers stay hot.
- Mixing valve blends in cooler return water, because floors need much cooler water than rads. The pump sits right after it.
- Manifold and floor loops: one PEX loop per area, warming the floor.
- Return: cooler water collects in the return pipe and goes back to the boiler to heat up again.
// Geothermal heat pump
Heat from the earth.
A closed ground loop plus a heat pump. Flip the switch to see how it heats and cools.
Ground, below frost8–10°Ctypically, all year
Loop into heat pump0–5°Ctypically, in mid-winter
Air out of ducts32–40°Ctypically, heating
Ground, below frost8–10°Ctypically, all year
Loop into heat pump20–30°Ctypically, in summer
Air out of ducts12–15°Ctypically, cooling
- Ground loop: buried plastic pipe (horizontal trenches or vertical boreholes) filled with water and antifreeze.
- Flow centre: pumps the loop fluid between the ground and the heat pump.
- Loop heat exchanger: in heating, cold refrigerant boils here and picks up heat from the loop fluid. In cooling, heat is dumped here into the loop.
- Compressor: squeezes the refrigerant vapour, which makes it much hotter.
- Reversing valve: sends the hot gas to the air coil (heating) or to the loop (cooling).
- Air coil and ducts: the blower moves air over the coil and through the ducts. Water-to-water units heat radiant floors instead.
- Expansion valve: drops the pressure so the refrigerant gets cold again and the cycle repeats.
- Desuperheater (optional): borrows some hot-gas heat to pre-heat your hot water tank.
// Inside a TJL boiler room
Every part, labelled.
A real TJL install. Tap the dots.
// Services
Everything in the mechanical room.
Taken straight from TJL's own job posts.
In-floor heatRADIANT
Radiant in-floor heat
Warm floors from loops of tubing fed by a boiler.
- Floor loop layout and tubing
- Manifolds for each zone
- Basements, garages and shops
GEO
Geothermal
Heating and cooling that draws on the steady temperature of the ground.
- Geothermal heat pump installs
- WaterFurnace and GeoStar units in recent jobs
- Heating and cooling from one system
GeothermalAIR
Ductless & air-source
Heat pumps for heating and cooling, with or without ducts.
- Mitsubishi ductless units
- Air-source heat pumps
- Heating and cooling in one system
GAS
Gas fitting & generators
Licensed gas work around the home.
- Gas fitting
- Generator hookups
GeothermalMORE
Air, wood & water
The extras that round out a system.
- Air exchangers for fresh air
- Wood boiler systems
- Pool heating
// Why TJL
Quality over quantity.
Clean installBuilt in the shop
Boiler systems are pre-assembled in the shop before they reach your home, so install day is faster and tidier.
Clean installs
Straight lines, tidy piping and a mechanical room that's easy to service later.
#quality over quantity
TJL's own motto. Fewer jobs, done properly.
Recognized work
Two nominations in HPAC Magazine's 2024 Sweet Heat hydronics contest.
// Recent work
Straight off the job site.
Real TJL installs. Tap any photo to see it up close.
// FAQ
Good questions.
Do you work on homes or businesses?
Both. TJL handles heating, cooling and refrigeration for homes and commercial jobs.
What does geothermal actually do?
A geothermal heat pump moves heat between your home and the ground through a buried loop of pipe. In winter it pulls heat in; in summer it moves heat out. One system handles both heating and cooling.
How does radiant in-floor heat work?
A boiler warms water, which is pumped through a manifold into loops of tubing under the floor. The floor itself gently warms the room.
Ductless or air-source: which one do I need?
It depends on your home. Ductless units suit homes or rooms without ductwork; ducted air-source heat pumps use the ducts you already have. We'll walk you through the options on a site visit.
Can you help me figure out rebates?
Ask us on your quote. We'll point you to programs you may qualify for.
How do I get a quote?
Call or email TJL. The quote is free and there's no pressure.
// Service area
Close to home.
01Fergus
02Elora
03Guelph
04Centre Wellington
// Free quote
Thinking about geo or a new boiler?
Get a free, no-pressure quote. We'll look at your space, talk through options and point you to rebates you may qualify for.
Emailinfo@tjlmechanical.caPhone519-829-0707
HoursWhen you need us, we'll be there.
AreaFergus, Elora, Guelph & Centre Wellington
