How We Research
Every recommendation on HomeProjectBase comes from the same documented process. Here’s exactly what we check, where our information comes from, and what we won’t do.
Last updated:
Our approach
We don’t currently test products hands-on, and we won’t pretend to. Our guides are research-based comparisons: we gather the specifications, efficiency ratings, warranty terms, safety listings and owner-reported problems for every product we consider, then compare them against what a specific homeowner actually needs.
When a guide is based on research rather than testing, it says so.
Our 5-step process
-
Define who the guide is for
Before looking at a single product, we decide whose problem the guide solves: the home size, household, climate, budget and skill level the decision depends on. A water heater guide for a family of five in Minnesota needs different picks than one for a one-bedroom condo.
-
Compare the specs that matter
We pull specifications from manufacturer spec sheets, installation manuals and certification databases, not from retailer listings, which are often incomplete or wrong. We focus on the few specs that change real-world results for that product type.
-
Read verified owner reviews
We look for patterns across many owner reviews: failures that show up after the first year, common installation problems, noise complaints and how well the manufacturer handles warranty claims. One angry review doesn’t sink a product; the same complaint repeated many times does.
-
Check installation and safety
We check safety certifications, recall history and installation requirements like venting, wiring and permits. When a job needs a licensed plumber, electrician or HVAC technician, the guide says so plainly.
-
Review and update
Models change, prices move and products get discontinued or recalled. Every guide carries a last-updated date and goes back through this process on a regular schedule.
Sources we use
- Manufacturer documentationSpec sheets, installation manuals and warranty documents
- Efficiency dataENERGY STAR listings and U.S. Department of Energy standards
- Certification directoriesThe AHRI directory for water heaters and HVAC equipment
- Safety listingsUL, ETL and CSA certification marks
- Recall recordsThe CPSC recall database
- Owner reviewsVerified-purchase reviews across multiple major retailers
We link to primary sources inside our guides wherever we use them.
What we check by product type
Every category has a handful of specs that decide whether a product works for you. These are the ones we compare first.
| Product type | What we compare |
|---|---|
| Tank water heaters | First-hour rating, tank size, Uniform Energy Factor (UEF), fuel type, venting type, warranty length |
| Tankless water heaters | Flow rate (GPM) at your temperature rise, BTU input, UEF, venting and gas line requirements, warranty |
| Washers, dryers and combos | Drum capacity, vented vs. ventless drying, cycle time, ENERGY STAR status, owner-reported reliability |
| Snow blowers | Single-, two- or three-stage design, clearing width, intake height, engine size or battery runtime, electric start |
| Riding and zero-turn mowers | Deck width, engine power, drive and transmission type, turning radius, yard size and slope suitability |
| Generators | Running and starting watts, inverter vs. conventional, fuel type, runtime, CO safety shutoff, transfer-switch readiness |
| Power tools | Battery platform, voltage, brushless vs. brushed motor, warranty, availability of bare tools and batteries |
New categories get their own criteria before we publish a guide in them.
How we pick winners
Our labels mean specific things:
- Best overall: the strongest fit for the most common household in the guide, judged on specs, reliability and value together.
- Best budget: the lowest-cost option we’d still be comfortable recommending, not just the cheapest one available.
- Best for a specific need: the right pick for a clearly defined situation, like large families or small spaces.
A popular product doesn’t automatically make the list. We leave out products with repeated reliability complaints, open safety recalls, weak warranties for the category, or missing safety certifications, and we explain why when a well-known product is missing.
How we keep guides current
Every guide shows the date it was last updated. We review each guide at least every six months, and sooner when a product is recalled, discontinued, replaced by a new model, or when a reader reports an error. Updates go through the same five steps as the original guide.
Who leads our research
Our research is led by Neil Nadder, Head of Research & Editorial, who has more than 10 years of experience in the home improvement industry. Neil runs this process for every guide we publish and reviews each one before it goes live.
We also plan to bring in licensed tradespeople, such as plumbers, electricians and HVAC technicians, to review our more technical guides. Until then, installation and safety guidance is based on manufacturer documentation. When an outside expert has reviewed a guide, their name and credentials will appear on it.
What we don’t do
- We don’t claim to have tested products we haven’t used.
- We don’t accept payment for placement or rankings. See our affiliate disclosure.
- We don’t let brands or retailers review our articles before publication.
- We don’t copy manufacturer marketing claims without checking them against specs and owner experience.
- We don’t recommend a product with an open safety recall.
Frequently asked questions
Does HomeProjectBase test products hands-on?
Not at the moment. Our guides are research-based comparisons built from manufacturer documentation, efficiency and safety data, and verified owner reviews. Each guide says how its picks were chosen.
Where does HomeProjectBase get product specifications?
From manufacturer spec sheets, installation manuals and certification databases such as ENERGY STAR and the AHRI directory, rather than from retailer listings.
How often are HomeProjectBase guides updated?
Every guide is reviewed at least every six months, and sooner when a product is recalled, discontinued or replaced, or when a reader reports an error.
Do affiliate commissions affect HomeProjectBase rankings?
No. Products are ranked by the criteria on this page. A higher commission never moves a product up, and we include products we don’t earn from when they’re the better choice.
Why isn’t a popular product in a HomeProjectBase guide?
We leave out products with repeated reliability complaints, open safety recalls, weak warranties or missing safety certifications, and we explain notable omissions in the guide.
See it in action
See the process in action in our buying guides, or tell us what we should research next.
