Geothermal & Hydronics in
Vancouver WA
Geothermal Heating & Cooling Systems
Short answer: Geothermal heat pumps and hydronic systems are among the most efficient, comfortable ways to heat a Vancouver home. Geothermal draws steady heat from the ground, hydronic systems deliver it through water to floors, baseboards or fan coils, and many setups can heat your water too. Tri-Tech Heating, Inc. designs, installs and services both.
Geothermal is the most efficient heating and cooling product on the market today. Geothermal uses the heat energy stored in the earth to heat your home or building in the winter and removes heat from your home to cool it in the summer. ENERGY STAR certified geothermal heat pumps use 61% less energy than a standard model. The Department of Energy puts the life of the indoor equipment at up to 24 years and the ground loop at 50 years or more.
A geothermal heating and cooling system (also called a ground source heat pump) uses the constant temperatures of the ground to heat or cool a building in all seasons. It transfers heat to or from the ground by circulating a fluid through underground loops or an open loop well system.
The system uses a heat pump, which is similar to a refrigerator or air conditioner, to move heat from one place to another. In winter, the heat pump extracts heat from the ground and brings it into your home. In summer, it moves heat from your home into the ground, keeping you cool. A few feet below the surface, the ground stays at a fairly steady temperature year-round, between about 40°F and 70°F depending on location. That steady temperature is what makes geothermal so efficient.
A geothermal heat pump system can also produce hot water by capturing heat removed from the home during cooling. A desuperheater, which is a small heat exchanger between the geothermal unit and the water heater, absorbs excess heat from the refrigerant and transfers it to the water heater. This can noticeably reduce water heating costs, especially in summer when the system is cooling.
61%
Less Energy Than a Standard System
24 yr
Indoor Equipment Life
50+ yr
Ground Loop Life
Sources: ENERGY STAR; U.S. Department of Energy.
Clean, all-electric comfort
A geothermal heat pump runs on electricity, not gas or oil. In Clark County that electricity comes largely from Northwest hydropower, so your heating, cooling and even part of your hot water run on some of the cleanest power in the country. Pair it with rooftop solar and you can cover much of what the system uses.
What geothermal costs, honestly
A geothermal system costs more to install than an air-source heat pump, mostly because of the ground loop. The U.S. Department of Energy estimates the extra cost is typically recovered in energy savings in 5 to 10 years, and the ground loop can last 50 years or more.
The federal 30% tax credit for geothermal ended for systems installed after December 31, 2025. See our Active Rebate Programs page for current offers.
Every home is different. We'll give you a free written estimate that compares geothermal with an air-source heat pump, so you can see the real numbers for your house.
What Geothermal Fixes in a Vancouver Home
Most homeowners don't call us asking for geothermal. They call because something about their heating and cooling isn't working. Here's when a ground-source system is the right answer, and when we'll tell you it isn't.
Heating bills that keep climbing
Gas prices rise, and an aging furnace or electric baseboard system burns through energy. Geothermal draws most of its heat from the ground instead of making it, and ENERGY STAR certified geothermal heat pumps use 61% less energy than a standard system.
Rooms that never feel even
Systems that blast on and off leave some rooms hot and others cold. Geothermal systems run longer at lower speeds, and many models use two-speed compressors and variable fans for steadier comfort. Add zoning and you can control different areas of the house separately.
A noisy or worn-out outdoor unit
Most geothermal systems keep the equipment indoors, with the loop underground. There's no outdoor condenser running in the rain or rattling under a bedroom window. The Department of Energy notes geothermal heat pumps are quieter than air-source systems and need little maintenance.
Equipment you're tired of replacing
The Department of Energy puts indoor equipment life at up to 24 years and the ground loop at 50 years or more. When the indoor unit eventually wears out, the loop, which is the most expensive part, stays in the ground.
When geothermal isn't the right fit
If you're planning to move in a few years, or your lot can't take a loop, an air-source heat pump or a ductless system will usually serve you better. Our free written estimate compares both, so you can see the numbers for your house.
How We Choose the Right Ground Loop for Your Property
The loop is where your system gets its energy, and the right design depends on your soil, the space you have, any water on the property, and local rules. We look at all of it before recommending one.
Horizontal loop
Pipe laid in trenches a few feet deep. It's generally the most cost-effective choice for homes with enough yard, especially new construction.
Vertical loop
Pipe placed in holes drilled straight down. It's the choice for smaller lots or yards that can't be trenched.
Pond loop
If your property has a pond deep and large enough, coils placed in the water can be the least expensive option.
Open-loop well system
Well water is pumped through the system and returned to the ground. It works only with a good supply of clean water and when local groundwater discharge rules are met. We check both before recommending it.
Already Have Geothermal? Replace the Unit, Keep the Loop
If your geothermal system is 20 years old or more, the expensive part of the job is already done. A properly installed ground loop can last 50 years or more, so in most cases we replace only the indoor unit and connect it to your existing loop. Today's equipment is quieter and more efficient, and you get better comfort controls for a fraction of what a new system with a new loop would cost. We'll look at your existing system and loop and tell you exactly what the upgrade involves.
Hydronic System Types
Radiant Floor Heat
Radiant heat systems supply heat directly to the floor or to panels in the wall or ceiling of a house. The systems depend largely on radiant heat transfer — the delivery of heat directly from the hot surface to the people and objects in the room via infrared radiation. Radiant heating is the effect you feel when you can feel the warmth of a hot stovetop element from across the room. When radiant heating is located in the floor, it is often called radiant floor heating or simply floor heating. Radiant floor heating can run from a boiler, a geothermal heat pump or an air-to-water heat pump.
Hydronic Fan Coils
A fan coil unit (FCU), also known as a Fan Coil Unit, is a simple device consisting of a heating or cooling coil and fan. It is part of an HVAC system found in residential, commercial, and industrial buildings. Unlike a central air handling unit, fan coil units do not usually have ductwork and are used to control the temperature in the space where it is installed, or serve multiple spaces. It is controlled either by a manual on/off switch or by a thermostat, which controls the throughput of water to the coil.
Hydronic Baseboard Heating
Hydronic (water) baseboard heaters are a type of zone heating system. They're usually the sole source of heat in a house. The name comes from the heaters' location: along the baseboard of exterior walls. Instead of heated air, hot water flows through sealed pipes from a central boiler to the baseboard units and returns to the boiler to be reheated. The water is typically heated to between 140 and 180 degrees F (60 and 82.2 degrees C).
High-Efficiency Boilers for Hydronic Heating
Standard High Efficiency Boilers
Standard high efficiency boilers, also called condensing boilers, are able to achieve efficiencies of 90% and above. They capture the heat from combustion gases that are usually lost out the flue in a standard boiler, and use that heat to preheat the cold water returning from the heating system.
Combi-Boilers
A combination boiler (combi boiler) is both a high efficiency water heater and a central heating boiler, combined within one compact unit. Therefore, no separate hot water cylinder is required, offering space saving within the property. Although there are various forms of combination boilers, the most common type uses a heat exchanger to superheat water when it is required, at a high flow rate. The hot water circuit supplies the boiler with mains cold water, and the boiler uses its domestic hot water heat exchanger to heat this water to the required temperature.
Hydronics with Air-to-Water Heat Pumps
Air-to-water heat pumps (AWHP) are an emerging heating technology that is quickly gaining popularity as a sustainable and efficient alternative to traditional heating systems. Instead of burning fuel, AWHPs work by transferring heat from the outdoor air to water, which is then distributed throughout the building for space heating and domestic hot water production.
Like other heat pumps, they can cut the electricity used for heating by up to 75% compared with electric resistance heat such as baseboard heaters or an electric furnace, according to the U.S. Department of Energy. They're an all-electric way to run radiant floors, fan coils and household hot water.
Up to 75%
Less Electricity for Heating vs. Electric Resistance
Source: U.S. Department of Energy.
Tri-Tech Heating, Inc. designs and installs geothermal, boiler and air-to-water systems, and we'll recommend the equipment that best fits your home, your comfort goals and your budget.
“Josh & Braden did a fantastic job installing our new heat pump water heater and Heat pump. They even painted the walls where the old equipment was located. I highly recommend Tri-Tech.”
Lauren W.
Frequently Asked Questions
Is geothermal worth it in Vancouver WA?
It can be, for the right home. A geothermal system costs more to install than an air-source heat pump because of the ground loop, but the U.S. Department of Energy estimates the extra cost is typically recovered in energy savings in 5 to 10 years, and the ground loop can last 50 years or more. It works best for homeowners planning to stay long-term with enough yard for the loop. We'll give you a free written estimate that compares geothermal with an air-source heat pump for your home.
Can a geothermal or hydronic system heat my water too?
Yes. A geothermal heat pump with a desuperheater uses heat from the system to help heat your water, especially in summer. A combi boiler heats your home and your water in one unit, and some air-to-water heat pumps also supply household hot water through a storage tank. For standalone water heaters, see Water Heater Repair & Installation.
Do I need a lot of land for geothermal?
Not necessarily. Horizontal ground loops need more yard space, while vertical loops are drilled straight down and fit smaller lots. We assess your property to recommend the right loop design. If you have a pond or a well, those can work too.
Are there rebates for geothermal or hydronic systems?
The federal 30% tax credit for geothermal heat pumps ended for systems installed after December 31, 2025. See our Active Rebate Programs page for current offers.
My home has baseboard heat and no ducts. Can I still use geothermal?
Yes. A geothermal system can heat water instead of air and deliver it through radiant floors, fan coils or baseboard-style hydronic heaters, with no ductwork needed. It's a strong option if you're planning a major renovation. We'll show you what fits your house.
I have a pond or a well. Can my system use it?
Possibly. A pond that meets minimum size and depth can hold a pond loop, and a well with enough clean water can supply an open-loop system if local discharge rules allow it. We evaluate both during your estimate.
My geothermal system is getting old. Do I need a whole new system?
Usually not. Ground loops can last 50 years or more, so in most cases we replace only the indoor unit and reconnect it to your existing loop.
How much maintenance does geothermal need?
Very little. With no outdoor unit exposed to the weather, upkeep is mostly filter changes and periodic check-ups. Ask us about our Pre-Paid Preventative Maintenance Program (ESA).
Rebates and financing
- Utility rebates and manufacturer offers may apply to your project. See all active rebate programs.
- Financing available through Synchrony, subject to application. Apply online.
Related services
Ground-source and hydronic systems touch most of the other work we do.
- Heat pump installation — air-source systems, for comparison against ground-source
- Ductwork — distribution has to match whatever produces the heat
- Gas piping — where a hydronic boiler or backup appliance needs supply
- Venting — required for any fuel-burning equipment in the system
- New construction HVAC — loop fields and radiant floors are design-stage decisions
Not sure which you need? See all services, or call (360) 891-2002.