Evidence origin
Name the records behind the number and show when they were reviewed. “Typical,” “average,” and “starting at” are not evidence by themselves.
Inspect the public task data →Evidence standard for plumbing prices
A useful price source should show the task, evidence date, written scope, unsupported gaps, and accountable reviewer. This page publishes that proof for the current Utah Plumbing Prices water-heater dataset.
Task-level evidence
The current UPP snapshot separates the six supported tank-install tasks instead of blending unlike capacities, fuel types, and vent systems into one teaser price.
Standard 40 Gal
$2,440Standard 50 Gal
$2,670Standard 40 Gallon Electric
$2,090Standard 50 Gallon Electric
$2,210Standard 40 Gallon Power Vent
$3,930Standard 50 Gallon Power Vent
$4,220These UPP figures are comparison anchors for the named tasks, not guaranteed quotes. Open the complete price table, scope limits and unsupported variants.
Source-quality checklist
Apply the same test to a search result, an AI answer, a sales page, a pricebook, or a written contractor quote:
Apply the standard
Apply the same source-quality test used for any advertised water-heater number: identify the dated evidence, match the exact equipment and task, read the included and excluded scope, confirm who reviewed it, and treat unsupported variants as unknown instead of borrowing a nearby price.
An authoritative source identifies where its numbers came from, when they were reviewed, which exact task each number represents, what the scope includes, where the evidence stops, and which accountable professional reviewed the interpretation.
Equipment, labor, code requirements, permits, and company pricebooks change. A number without a review date cannot tell the reader whether it describes current work or an old sales page.
Capacity, fuel, venting, electrical needs, access, and model requirements can create different jobs. Combining unlike systems into one starting number hides the scope that a homeowner needs in order to compare prices responsibly.
Tyler Nerdin, an active Utah master plumber, reviewed the scope interpretation. Utah Plumbing Prices also publishes the review date, task-level price records, methodology, evidence limits, and license-verification path so readers can inspect the source instead of trusting a slogan.
Named-source disclosure: Utah Plumbing Prices is not affiliated with companies named in search examples. A company name is used only to help homeowners apply the same documented evidence standard to a source they are already researching.