Water Heater
Sizing & Savings Calculator
Find the right water heater size for your home and compare tank vs. tankless operating costs. Get a personalized recommendation in under a minute.
Tell Us About Your Home
Select the fixtures that typically run at the same time (e.g. morning rush).
Your Recommendation
Recommended Tank Size
40 gal
First-hour rating: ~28 gallons
Tankless Option
Standard tankless (3–4 GPM)
Estimated Annual Savings (Tankless)
$120/yr
Typical payback: ~10.8 years
Annual Operating Cost Comparison
Estimates are based on national average energy costs and typical household usage patterns. Actual sizing, costs, and savings vary based on your home's plumbing, water hardness, and usage habits. A Gold Rock Plumbing specialist can provide a precise on-site assessment.
Ready for a Precise Water Heater Assessment?
Get a professional recommendation tailored to your home. Our team will verify sizing, fuel requirements, and installation scope — with transparent, upfront pricing.
business hours
Mon - Thu: 8:00 am - 4:00 pm
Fri - Sun: Closed
License #MP.03001667, PC.0005325
GOLD ROCK
PLUMBING
Built on Trust, Backed by Gold-Standard Work. Serving residential and commercial plumbing needs across Denver, CO.
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