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Herman's Plumbing & Drains
719-204-4120 Schedule Service
Done Right Since 1950 ✦

Tankless Water Heaters

Efficient on-demand hot water systems.

Professional Tankless Water Heaters

Tankless water heater installation, service, flushing and replacement planning.

Tankless Water Heaters Options & Related Services

Choose a topic for a more detailed explanation of warning signs, service options, the work process, and common questions.

Tankless Repair

Diagnosis of ignition, flow, sensor, control, venting, and heat-exchanger problems.

Tankless Sizing

Temperature rise, flow rate, simultaneous demand, and recirculation planning.

Warning Signs to Watch For

  • Fluctuating water temperature, cold-water sandwiches, or loss of hot water under higher demand.
  • Error codes, ignition failures, repeated shutdowns, or an appliance that needs frequent resets.
  • Reduced flow, scale-related restriction, unusual noise, or overdue descaling.
  • Visible condensate, vent, gas, water, or pressure-relief issues.
  • A system that was never able to serve the number of fixtures used at the same time.

How the Service Process Works

1

Demand and infrastructure review

We calculate likely simultaneous use and review gas or electrical capacity, venting route, combustion air, condensate disposal, water quality, mounting space, and service clearances.

2

Equipment and layout options

We compare condensing and non-condensing equipment, flow and temperature-rise capacity, recirculation needs, isolation valves, filtration or conditioning, and installation complexity.

3

Installation or service

Work may include approved venting, gas or electrical changes, water piping, condensate management, isolation valves, startup, flushing, repair, or equipment replacement.

4

Commissioning and care

The unit is checked under demand, error history is reviewed when available, temperature is verified, and maintenance expectations are explained.

Practical Advice for Common Scenarios

1

Conversion from a tank

Do not assume the existing gas line, vent, electrical circuit, or drain arrangement is adequate. Conversion cost is driven as much by infrastructure as by the appliance.

2

Scale and hard water

Scale can reduce heat transfer and flow. Maintenance frequency should reflect water quality, usage, manufacturer requirements, and whether treatment is installed.

3

Long wait for hot water

Tankless equipment does not eliminate travel time through long piping runs. A recirculation strategy may help, but it must be designed to avoid energy waste and equipment problems.

4

Error code

Record the exact code and the conditions when it appears. Avoid repeated resets without diagnosis, especially for combustion, venting, overheating, or flame-sensing faults.

Tankless Water Heaters FAQs

Will a tankless water heater give unlimited hot water?

It can provide continuous hot water within its rated flow and temperature-rise capacity. If demand exceeds that capacity, outlet temperature or flow can suffer.

Does tankless hot water arrive instantly?

Not usually. Water still has to travel through the piping. Recirculation may reduce wait time when the system and controls are designed for it.

How often should a tankless unit be flushed?

The interval depends on water hardness, usage, treatment, and manufacturer guidance. A service recommendation should be based on the actual equipment and local conditions.

Can every home convert to tankless?

Many can, but some require substantial gas, electrical, venting, condensate, or piping changes. A site evaluation is the safest way to determine feasibility.