There’s nothing more frustrating than stepping into the shower expecting relaxing hot water — only to get lukewarm at best. If your hot water is not getting hot enough, you’re not alone. This is one of the most common plumbing issues homeowners experience.

At Right Now Heating, Air Conditioning & Plumbing, we help homeowners quickly diagnose and fix water heater problems so you can get back to consistent, reliable hot water.

Below are the most common causes — and what you can do about them.

1. Thermostat Is Set Too Low

Sometimes the fix is simple.

Most water heaters are set to 120°F by default, which is recommended for safety and energy efficiency. However, if someone accidentally lowered the temperature setting, your water may never get fully hot.

What to Do:

• Check the thermostat setting on your water heater.

• For electric units, thermostats are behind access panels.

• For gas units, check the temperature dial near the bottom of the tank.

If you’re unsure how to safely adjust it, it’s best to call a professional plumber.

2. Sediment Buildup in the Tank

Over time, minerals in your water supply can settle at the bottom of the tank. This sediment buildup creates a barrier between the burner or heating elements and the water.

The result? Lukewarm water, longer heating times, and reduced efficiency.

Signs of Sediment Buildup:

• Hot water runs out quickly

• Rumbling or popping noises from the tank

• Rising energy bills

• Inconsistent water temperatures

Solution:

A professional water heater flush removes sediment and restores proper heating performance.

3. Failing Heating Elements (Electric Water Heaters)

Electric water heaters contain two heating elements. If one fails, your water may only get partially heated.

Common symptoms:

• Water is warm, but not hot

• Hot water runs out much faster than usual

• Circuit breaker trips repeatedly

Replacing a heating element is a common repair that should be handled by a licensed technician.

4. Gas Burner Problems (Gas Water Heaters)

For gas water heaters, issues may include:

• Dirty or clogged burner

• Faulty thermocouple

• Gas supply problems

• Pilot light issues

If the burner isn’t operating properly, your tank won’t reach the correct temperature.

Gas appliance repairs should always be performed by trained professionals for safety.

5. Water Heater Is Too Small for Your Household

If your household has grown — or hot water demand has increased — your water heater may simply be undersized.

Signs you may need a larger system:

• Hot water runs out daily

• Multiple showers can’t run comfortably at once

• You’ve added appliances or bathrooms

A properly sized water heater ensures consistent performance and comfort.

6. Aging Water Heater

Traditional tank water heaters typically last 8–12 years. As they age, efficiency drops and heating performance declines.

If your system is:

• Over 10 years old

• Requiring frequent repairs

• Struggling to maintain temperature

It may be more cost-effective to replace it with a newer, energy-efficient model.

Should You Repair or Replace Your Water Heater?

At Right Now Heating, Air Conditioning & Plumbing, we help homeowners determine the most cost-effective solution.

Repair Makes Sense If:

• The unit is under 8 years old

• The issue is minor (thermostat, element, sediment)

• The tank itself is in good condition

Replacement May Be Better If:

• The tank is leaking

• The system is over 10–12 years old

• Repairs are becoming frequent

• You want improved energy efficiency

We also install tankless water heaters for homeowners who want endless hot water and greater long-term efficiency.

Why Choose Right Now Heating, Air Conditioning & Plumbing?

Homeowners trust our team for:

• Fast, reliable plumbing service

• Licensed and experienced technicians

• Honest recommendations and transparent pricing

• Emergency water heater repair

• Professional installation and maintenance

When your hot water isn’t hot enough, we respond quickly to restore comfort to your home.

Schedule Water Heater Service Today

Don’t settle for lukewarm showers. If your hot water is not getting hot enough, let our expert team diagnose and fix the issue quickly and professionally.

Call Right Now Heating, Air Conditioning & Plumbing at 208-585-5868 today to schedule service.

Or book online now for fast, convenient scheduling at a time that works best for you.

Get dependable hot water restored right now.