A tankless water heater heats water only when you turn on a tap, which means it never stores hot water in a tank waiting to be used. This single difference changes how the equipment is sized, installed, and maintained. In a Park Ridge home, where basement space is valuable and winters put heavy demand on incoming water temperatures, this on-demand approach can reshape how your household uses hot water.
At All Temp Heating & Air Conditioning, we install tankless water heaters for families who want a steady supply of hot water without the footprint of a traditional storage tank. Below, we walk through how these systems work, what the installation involves from beginning to end, and where a tankless unit makes the most sense for a Park Ridge household.
How a Tankless Water Heater Works
A tankless water heater uses a high-output burner or electric element to raise water temperature as it flows through a heat exchanger. When you open a hot water tap, a flow sensor detects the demand and fires the unit. Water passes through the exchanger, absorbs heat, and reaches your fixture at the temperature you set. When you close the tap, the unit shuts down and stops using energy.
Because there is no tank, there is no standby heat loss. A conventional storage tank keeps 40 to 50 gallons hot around the clock, reheating that water whether or not anyone is home. A tankless unit avoids that constant cycling. This is one reason many Park Ridge homeowners see lower operating costs after switching, especially in households with moderate hot water use.
The main technical limit of a tankless system is flow rate, measured in gallons per minute. Gas models typically deliver between 5 and 10 gallons per minute depending on the size of the unit and the temperature rise required. In our climate, incoming groundwater can drop into the 40s during winter, so the unit must work harder to reach a comfortable outlet temperature. Correct sizing accounts for this seasonal difference so your showers do not run cold in January.
Sizing and Selecting the Right Unit
Getting the size right is the most important part of any tankless installation. An undersized unit will struggle to supply two showers and a dishwasher at once. An oversized unit costs more than necessary and may short-cycle. We calculate the peak demand of your home and the required temperature rise for our region, then match those numbers to a unit that fits both.
To size a system accurately for your Park Ridge home, we look at several factors:
- Peak simultaneous demand: How many fixtures might run at the same time during a busy morning or evening.
- Winter groundwater temperature: The colder the incoming water, the more heating the unit must provide to reach your target.
- Fuel type and gas supply: Gas tankless units often require a larger gas line and dedicated venting than a tank replacement.
- Electrical capacity: Electric models draw significant amperage and may need panel upgrades.
- Household size and habits: A family of five uses hot water very differently than a couple.
As a family owned and operated company, All Temp Heating & Air Conditioning takes the time to review these details with you rather than pushing a one-size-fits-all product. We sell and install quality water heaters alongside furnaces, air conditioning, boilers, air purifiers, humidifiers, and ventilation, so we understand how your water heater fits into the larger picture of your home’s mechanical systems.
Our Installation Process From Start to Finish
A tankless installation is more involved than swapping one tank for another. The unit mounts on a wall, connects to gas and water lines, and requires proper venting to exhaust combustion gases. Our goal is to complete the work cleanly, safely, and to code, so the system performs as designed for years.
The process generally follows these stages:
- In-home assessment: We evaluate your current water heater, gas supply, venting path, and electrical service to confirm what the new unit needs.
- Load and sizing calculation: We determine peak demand and temperature rise, then recommend a unit matched to your household.
- Removal of the old equipment: If you are replacing a storage tank, we drain and disconnect it and haul it away.
- Gas and water line preparation: Many gas tankless units need an upgraded gas line to supply enough fuel at peak fire. We modify plumbing as required.
- Mounting and venting: We secure the unit to the wall and install stainless steel or approved venting that routes exhaust safely outside.
- Connection and startup: We connect fuel, water, and controls, then commission the unit and set your target temperature.
- Testing and walkthrough: We verify flow, temperature, and combustion, check for leaks, and show you how to operate and maintain your new system.
Each of these steps matters. Skipping the gas line evaluation, for example, is a common cause of underperforming tankless units. When a burner cannot draw enough fuel, it cannot reach its rated output, and the homeowner blames the equipment instead of the installation. We plan for full-fire operation from the start.
Where a Tankless Water Heater Makes Sense
Not every home benefits equally from going tankless, and we would rather tell you that honestly than sell you something that does not fit. That said, several situations point strongly toward a tankless upgrade.
Homes with limited space gain the most obvious advantage. A tankless unit mounts on a wall and frees up the floor area a tank would occupy. In finished basements or tight utility closets, that reclaimed space can be meaningful. Households that frequently run out of hot water also benefit, because a properly sized tankless system supplies continuous hot water rather than draining a fixed reserve.
Energy-conscious homeowners appreciate the elimination of standby loss. If your family uses hot water in spread-out bursts throughout the day, you avoid paying to keep a tank hot during the hours in between. Longevity is another factor. Tankless units often last longer than storage tanks when maintained, and many components can be serviced or replaced rather than requiring full replacement of the unit.
Hard water is common across the Chicago area, and mineral scale can build up inside a tankless heat exchanger over time. We recommend periodic descaling to keep the exchanger clear and the unit operating at full efficiency. This maintenance is straightforward and helps protect your investment for the long term.
Why Park Ridge Homeowners Choose All Temp
All Temp Chicago Heating & Air Conditioning has become the first choice for tens of thousands of families throughout the Chicago and suburban areas. We serve Park Ridge and the surrounding communities including Chicago, Bolingbrook, Skokie, Evanston, Lincolnwood, Morton Grove, Niles, Park Ridge, Woodridge, and Darien, IL, bringing the same courteous, fast, and friendly service to every job. Our staff is here to handle all of your needs, from a single water heater installation to a full mechanical system upgrade.
We are also one of Bryant’s highest-rated dealers in the nation, a recognition that reflects our commitment to doing installations correctly the first time. When you work with All Temp Heating & Air Conditioning, you get a team that understands both the equipment and the way our local climate affects it. If you are considering a tankless water heater for your Park Ridge home, reach out to us and we will help you decide whether it is the right choice, size it correctly, and install it with care.