About SimpleIndoors

SimpleIndoors helps homeowners make clearer decisions about heating, cooling, air quality, ductwork, controls, maintenance, and HVAC replacement. We turn technical subjects into practical questions, comparisons, checklists, and planning steps you can use before speaking with a qualified local professional.

Our Mission

HVAC decisions are rarely as simple as choosing the highest efficiency number or the lowest estimate. Climate, room-by-room loads, existing ducts, electrical service, fuel availability, moisture, ventilation, equipment matching, installation quality, controls, and maintenance all affect the result. Our mission is to explain those relationships in plain English so readers can compare complete solutions—not isolated products or sales claims.

SimpleIndoors is an educational publishing website. We are not an HVAC contractor, engineering firm, code authority, utility, manufacturer, retailer, emergency service, or medical provider. Our guides help you prepare for a project and communicate with professionals; they do not replace an inspection, load calculation, permit review, manufacturer instructions, or advice from a qualified professional who has evaluated your home.

What We Cover

TopicWhat our guides help you evaluate
Heating and cooling systemsSystem types, capacity, efficiency, climate fit, installation scope, operating cost, maintenance, and replacement timing.
Heat pumps and mini splitsCold-weather performance, zoning, indoor-unit choices, backup heat, electrical needs, and commissioning.
Ductwork and airflowRoom loads, supply and return paths, leakage, insulation, static pressure, balancing, noise, and comfort.
Indoor air qualitySource control, moisture, ventilation, filtration, air cleaning, combustion safety, and room-by-room diagnosis.
Thermostats and controlsCompatibility, wiring, staging, schedules, sensors, smart features, privacy, and safe system operation.
Products and suppliesUse cases, specifications, compatibility questions, maintenance relevance, retailer availability, and buying considerations.

How We Build a Guide

  1. Define the homeowner decision. We begin with the questions a reader needs to answer, the risks that deserve attention, and the information a contractor would need.
  2. Research authoritative material. We prioritize government agencies, recognized industry standards, certification programs, manufacturer technical documentation, utility information, and other primary sources.
  3. Separate general guidance from project-specific design. We explain principles and comparisons while identifying decisions that require measurements, calculations, local codes, or professional judgment.
  4. Make the information usable. Tables, checklists, examples, definitions, and questions for contractors help readers apply the material without pretending that one answer fits every home.
  5. Review links and update changing details. Product availability, incentives, prices, standards, and web resources change. We review material when we identify a meaningful change or receive a well-supported correction.

Our Editorial Principles

  • Explain the whole system. Equipment, ducts, controls, envelope, ventilation, climate, and installation quality should be considered together.
  • Use evidence, not hype. We distinguish standardized ratings, field measurements, illustrative examples, and marketing language.
  • Make uncertainty visible. Costs, savings, service life, comfort, and performance vary; we state important assumptions and variables instead of promising a universal result.
  • Put safety before convenience. Electrical, combustion, refrigerant, structural, moisture, mold, and indoor-air hazards belong with qualified professionals and applicable safety guidance.
  • Preserve editorial independence. Commercial relationships do not purchase a favorable conclusion or determine which educational topics we cover.
  • Correct meaningful errors. We welcome specific corrections supported by current primary documentation.

How Product Recommendations Work

Some pages contain links to products sold by third-party retailers. We may earn a commission when a reader makes a qualifying purchase through an eligible link, without adding a separate charge to that purchase. Affiliate relationships support the site, but they do not change the need to verify compatibility, installation requirements, current price, warranty terms, and retailer policies.

We aim to recommend products for a clear use case and explain the important tradeoffs. A listing does not mean that a product is appropriate for every HVAC system or home. Product claims, prices, inventory, rebates, and specifications can change after publication. Read our complete Affiliate Disclosure for details.

How to Use SimpleIndoors

  • Start with the cornerstone guide for your system or concern.
  • Write down your comfort problems, equipment model numbers, maintenance history, utility information, renovation plans, and project priorities.
  • Use our tables and checklists to compare contractor scopes—not only headline prices.
  • Ask for project-specific calculations, compatible equipment data, permits, commissioning measurements, and written exclusions where applicable.
  • Confirm current codes, incentives, warranty requirements, and safety instructions with the responsible local organizations.

Corrections, Questions, and Feedback

If you find a broken link, outdated specification, unclear explanation, or factual error, please use our Contact page. Include the page URL, the passage in question, and a link or citation supporting the correction. We review useful feedback, although submitting a message does not guarantee publication, a personal recommendation, or a response.

For details about how this website handles information and commercial relationships, see the Privacy Policy, Terms of Use, and Affiliate Disclosure.