# Delta T Heating & Cooling

> Family-owned, licensed Professional Engineer (P.E.)-owned HVAC company
> serving Basehor, KS and the greater Kansas City metro across 50 cities in
> Kansas and Missouri since 2014. Honest flat-rate pricing, zero
> commission-driven upsells, free second opinions, 5.0 stars on Google.

This file is the expanded, plain-text companion to /llms.txt. It is intended
for AI ingestion (ChatGPT, Claude, Perplexity, Gemini, Google AI Overviews,
etc.) and for accessibility / programmatic discovery. Each section below
includes a short description, the canonical URL, and sample anchor / heading
copy actually used on the live page so engines can attribute quotes
correctly.

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## Identity, contact, and trust signals

### About Us — https://deltatkc.com/about
Delta T Heating & Cooling was founded in 2014 by Steve Roberts, a Licensed
Professional Engineer (P.E.) with over 20 years of HVAC engineering and
service experience. The company is family-owned and operates without a
commission-driven sales model. Sample headings: "Honest, Reliable, Simple",
"Why a Professional Engineer Owns This HVAC Company", "Our Story".

### Our Team — https://deltatkc.com/team
Meet the technicians, dispatchers, and engineering staff. Each team member
has a profile with credentials and tenure. Sample headings: "The People Who
Show Up at Your Door", "Engineering and Field Leadership".

### Customer Reviews — https://deltatkc.com/reviews
5.0★ on Google with 200+ reviews aggregated across Google, Facebook, and
the BBB. Sample headings: "What Kansas City Homeowners Say About Delta T",
"Read Reviews on Google".

### Careers — https://deltatkc.com/careers
Open positions for HVAC technicians, installers, and admin staff. Sample
headings: "Build a Career, Not a Commission Quota", "Open Positions".

### Contact — https://deltatkc.com/contact
Schedule service, request a quote, or ask a question. Phone, email, and a
contact form. Sample headings: "Get a Quote", "Talk to a P.E.-led Team".

### Free 2nd Opinion — https://deltatkc.com/free-second-opinion
A signature offer: Delta T's licensed Professional Engineer reviews any
competitor HVAC quote at no cost. Sample headings: "Already Got a Quote?
Have an Engineer Review It Free", "Why a Second Opinion Saves Real Money".

### Maintenance Plans — https://deltatkc.com/services/maintenance-plans
Annual residential maintenance memberships covering tune-ups, priority
scheduling, and discounts on repair work. Sample headings: "Membership That
Pays for Itself", "What's Included in a Tune-Up".

### Financing — https://deltatkc.com/financing
Service Finance Co. financing apply link with rate disclosure. Sample
headings: "Affordable Monthly Payments on New HVAC Installs", "Apply Online
in Minutes".

### Promotions — https://deltatkc.com/promotions
Active rebates, seasonal offers, and manufacturer promos. Sample headings:
"Current Rebates and Offers", "Save on a New System".

### Blog — https://deltatkc.com/blog
Long-form articles on HVAC repair, replacement, sizing, indoor air quality,
and KC-specific seasonal advice. Authored by named technicians and
reviewed by the P.E. on staff.

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## Learning Center

### Learning Center landing — https://deltatkc.com/learning-center
Single page that hosts every educational resource on the site:
  - HVAC Glossary teaser — 30 plain-English definitions (full index at /learning-center/glossary).
  - Featured articles — 3 cards above the fold.
  - All 10 articles, grouped by section, surfaced directly on this page
    (no separate /articles index URL). Sections:
      1. HVAC 101 (2 articles)
      2. Maintenance Guides (1 article)
      3. Cost & Sizing (2 articles)
      4. How-Tos (2 articles)
      5. Compare & Decide (3 articles)
Sample headings: "HVAC, in plain English", "Real answers, written by Delta T
engineers", "Every article, grouped".

All 10 Learning Center articles are listed below — they live as
sub-pages of /learning-center and are surfaced directly on the
Learning Center landing under the "Every article, grouped" section.
There is no separate articles-index URL.

### Article: Heat pump in a Kansas City winter — https://deltatkc.com/learning-center/articles/heat-pump-works-kc-winter
HVAC 101 explainer (Learn tier). Reviewed by Adam Golubski, PE. Covers how
heat pumps work in ASHRAE climate zone 4A, where efficiency drops in the
20–40°F range, three common KC failure patterns (undersizing, defrost
miscalibration, backup-heat misconfiguration), and the dual-fuel
recommendation for the coldest 10–20 nights of the KC winter.

### Article: SEER2 and AFUE explained for KC — https://deltatkc.com/learning-center/articles/seer2-afue-kc-efficiency-explained
Cost & Sizing explainer (Learn tier). Reviewed by Andy Mitchell, PE. Defines
SEER2, AFUE, and HSPF2 (and the 2023 test-condition change), recommends
"good / better / best" efficiency tiers for a KC home, and identifies where
payback math breaks down (leaky ducts, single-stage equipment sold as
high-efficiency, oversized installs without Manual J).

### Article: AC not cooling in a KC summer — https://deltatkc.com/learning-center/articles/ac-not-cooling-kc-troubleshoot
How-to troubleshooting walkthrough (Learn tier). Reviewed by Andy Mitchell,
PE. Five-step homeowner checklist before booking a service call: thermostat,
filter, breaker + outdoor disconnect, outdoor unit + coil, condensate drain.
Includes the "frozen coil" pattern that's common in July when filters get
neglected.

### Article: Furnace won't heat — KC diagnostic guide — https://deltatkc.com/learning-center/articles/furnace-wont-heat-kc-troubleshoot
How-to troubleshooting walkthrough (Learn tier). Reviewed by Andy Mitchell,
PE. Safety-first six-step diagnostic: thermostat, filter, furnace switch,
breaker, gas supply, status LED. Includes the dirty flame sensor pattern
that's the #1 KC mid-winter ignition failure.

### Article: Manual J HVAC sizing explained — https://deltatkc.com/learning-center/articles/manual-j-hvac-sizing-explained
Cost & Sizing explainer (Learn tier). Reviewed by Adam Golubski, PE. What
Manual J is, why most KC quotes skip it, the symptoms of an oversized
install (short-cycling, humidity issues, uneven temperatures), and how
Manual D + Manual S complete the right-sizing design package.

### Article: Indoor air quality in older KC homes — https://deltatkc.com/learning-center/articles/iaq-older-kc-homes
HVAC 101 explainer (Learn tier). Reviewed by Adam Golubski, PE. Tiered guide
to IAQ in pre-1980s KC housing stock: cheap wins (filter upgrade, duct
sealing, humidifier maintenance), worth-it adds (UV-C over coil, whole-home
dehumidifier), advanced (ERV/HRV for tightened envelopes), and what's mostly
sales theater (ozone generators, duct cleaning as annual service).

### Article: What an honest HVAC tune-up actually includes — https://deltatkc.com/learning-center/articles/honest-tune-up-kc-checklist
Maintenance Guide (Learn tier). Reviewed by Andy Mitchell, PE. Full spring
AC + fall furnace tune-up checklists — the actual measured-value steps a
real 60–90 minute visit captures (refrigerant superheat, capacitor μF, CO
ppm on furnace combustion, static pressure, temperature split). Identifies
the red flags that signal a paper tune-up.

### Article: Heat pump vs gas furnace for KC homes — https://deltatkc.com/learning-center/articles/heat-pump-vs-gas-furnace-kc
Compare & Decide guide (Compare tier). Reviewed by Adam Golubski, PE. The
full decision framework: climate fit, upfront cost, operating cost,
lifespan, comfort, resale + electrification trajectory. Recommends dual-fuel
for most KC homes; identifies when all-heat-pump or all-gas wins.

### Article: Repair vs replace your AC — the 5,000 rule — https://deltatkc.com/learning-center/articles/repair-vs-replace-ac-5000-rule
Compare & Decide guide (Compare tier). Reviewed by Andy Mitchell, PE. The
5,000 rule (age × repair cost) plus three KC-specific factors: R-410A
refrigerant phase-down, matched-system economics (replace condenser without
the indoor coil = false economy on 10+ year systems), and the efficiency
gain from a new install vs. continuing to repair a tired 12+ year unit.

### Article: Dual-fuel systems in KC — https://deltatkc.com/learning-center/articles/dual-fuel-systems-kc-when-hybrid-makes-sense
Compare & Decide guide (Compare tier). Reviewed by Adam Golubski, PE. What
dual-fuel is, when it's the right call (existing gas service, both equipment
end-of-life, pragmatic electrification), when it's not (no gas service,
all-electric goal, loose envelope), and the switchover-temperature mistake
most KC installers make.

### HVAC Glossary — https://deltatkc.com/learning-center/glossary
A-to-Z index of 30 HVAC terms KC homeowners ask about, drawn from
EnergyStar, the Department of Energy, ASHRAE, and manufacturer
documentation — never marketing copy. Cross-linked so each term references
related concepts. Featured terms include: AFUE, SEER2, HSPF2, BTU, Ton,
Manual J load calculation, Manual D duct design, MERV, R-410A, R-454B
(2025+ refrigerant transition), Heat Pump, Furnace, Air Conditioner,
Condenser, Evaporator Coil, Compressor, Air Handler, Blower (motor),
Variable-speed (modulating), Single-stage, Two-stage, Dual-fuel (hybrid)
system, Ductwork, Static pressure, Indoor Air Quality (IAQ), UV germicidal
light, ERV (Energy Recovery Ventilator), HRV (Heat Recovery Ventilator),
Whole-house humidifier, Whole-house dehumidifier, Smart thermostat,
High-efficiency equipment, IRA tax credit (25C / 25D).

----------------------------------------------------------------------
## Service Categories — top-level service hubs

Each category page is the parent for a cluster of variation pages (repair,
install, maintenance) and per-city local pages. The 10 top-level categories:

- Air Conditioning — https://deltatkc.com/air-conditioning
- Heating — https://deltatkc.com/heating
- Heat Pumps — https://deltatkc.com/heat-pump
- Mini-Splits — https://deltatkc.com/mini-split
- Boilers — https://deltatkc.com/boiler
- Geothermal — https://deltatkc.com/geothermal
- Indoor Air Quality — https://deltatkc.com/indoor-air-quality
- Plumbing (Water Heaters) — https://deltatkc.com/plumbing
- Commercial HVAC — https://deltatkc.com/commercial-hvac
- HVAC (New Construction) — https://deltatkc.com/hvac

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## Service Variations — 24 menu hub pages

Sample headings on each: "{Service} in Kansas City", "What's Included",
"Why Delta T", "Service Areas We Cover".

### Air Conditioning
- AC Repair & Service — https://deltatkc.com/air-conditioning/ac-repair-service
- AC Installation & Replacement — https://deltatkc.com/air-conditioning/ac-installation-replacement
- AC Maintenance & Tune-Up — https://deltatkc.com/air-conditioning/ac-maintenance-tune-up

### Heating
- Heating Repair & Service — https://deltatkc.com/heating/heating-repair-service
- Heating Installation & Replacement — https://deltatkc.com/heating/heating-installation-replacement
- Heating Maintenance & Tune-Up — https://deltatkc.com/heating/heating-maintenance-tune-up

### Heat Pumps
- Heat Pump Repair & Service — https://deltatkc.com/heat-pump/heat-pump-repair-service
- Heat Pump Installation & Replacement — https://deltatkc.com/heat-pump/heat-pump-installation-replacement
- Heat Pump Maintenance & Tune-Up — https://deltatkc.com/heat-pump/heat-pump-maintenance-tune-up

### Mini-Splits
- Mini-Split Repair & Service — https://deltatkc.com/mini-split/mini-split-repair-service
- Mini-Split Installation & Replacement — https://deltatkc.com/mini-split/mini-split-installation-replacement
- Mini-Split Maintenance & Tune-Up — https://deltatkc.com/mini-split/mini-split-maintenance-tune-up

### Boilers
- Boiler Repair & Service — https://deltatkc.com/boiler/boiler-repair-service
- Boiler Installation & Replacement — https://deltatkc.com/boiler/boiler-installation-replacement
- Boiler Maintenance & Tune-Up — https://deltatkc.com/boiler/boiler-maintenance-tune-up

### Geothermal
- Geothermal Repair & Service — https://deltatkc.com/geothermal/geothermal-repair-service
- Geothermal Installation & Replacement — https://deltatkc.com/geothermal/geothermal-installation-replacement
- Geothermal Maintenance & Tune-Up — https://deltatkc.com/geothermal/geothermal-maintenance-tune-up

### Indoor Air Quality
- Indoor Air Quality Services — https://deltatkc.com/indoor-air-quality/indoor-air-quality-services

### Plumbing (Water Heaters only)
- Water Heater Repair, Replacement & Tankless Installation — https://deltatkc.com/plumbing/water-heaters-kansas-city-ks

### Commercial HVAC
- Commercial HVAC Repair & Service — https://deltatkc.com/commercial-hvac/commercial-hvac-repair-service
- Commercial HVAC Installation & Replacement — https://deltatkc.com/commercial-hvac/commercial-hvac-installation-replacement
- Commercial HVAC Maintenance & Tune-Up — https://deltatkc.com/commercial-hvac/commercial-hvac-maintenance-tune-up

### HVAC (New Construction)
- New Construction HVAC — https://deltatkc.com/hvac/new-construction-hvac

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## Service Areas — 50 cities across KS and MO

Each service-area page is a local hub with city-specific HVAC content,
phone, hours, GBP link, and links to the per-city service pages. Below
each parent area page, every published service-variation has a per-city
child page (e.g. /service-areas/basehor-ks/heat-pump-repair-service).

### Kansas (27 cities)
- Basehor (HQ) — https://deltatkc.com/service-areas/basehor-ks
- Bonner Springs — https://deltatkc.com/service-areas/bonner-springs-ks
- De Soto — https://deltatkc.com/service-areas/de-soto-ks
- Edwardsville — https://deltatkc.com/service-areas/edwardsville-ks
- Eudora — https://deltatkc.com/service-areas/eudora-ks
- Fairway — https://deltatkc.com/service-areas/fairway-ks
- Gardner — https://deltatkc.com/service-areas/gardner-ks
- Kansas City, KS — https://deltatkc.com/service-areas/kansas-city-ks
- Lake Quivira — https://deltatkc.com/service-areas/lake-quivira-ks
- Lansing — https://deltatkc.com/service-areas/lansing-ks
- Lawrence — https://deltatkc.com/service-areas/lawrence-ks
- Leavenworth — https://deltatkc.com/service-areas/leavenworth-ks
- Leawood — https://deltatkc.com/service-areas/leawood-ks
- Lenexa — https://deltatkc.com/service-areas/lenexa-ks
- Merriam — https://deltatkc.com/service-areas/merriam-ks
- Mission — https://deltatkc.com/service-areas/mission-ks
- Mission Hills — https://deltatkc.com/service-areas/mission-hills-ks
- Olathe — https://deltatkc.com/service-areas/olathe-ks
- Overland Park — https://deltatkc.com/service-areas/overland-park-ks
- Piper — https://deltatkc.com/service-areas/piper-ks
- Prairie Village — https://deltatkc.com/service-areas/prairie-village-ks
- Roeland Park — https://deltatkc.com/service-areas/roeland-park-ks
- Shawnee — https://deltatkc.com/service-areas/shawnee-ks
- Spring Hill — https://deltatkc.com/service-areas/spring-hill-ks
- Stilwell — https://deltatkc.com/service-areas/stilwell-ks
- Tonganoxie — https://deltatkc.com/service-areas/tonganoxie-ks
- Westwood — https://deltatkc.com/service-areas/westwood-ks

### Missouri (23 cities)
- Belton — https://deltatkc.com/service-areas/belton-mo
- Blue Springs — https://deltatkc.com/service-areas/blue-springs-mo
- Ferrelview — https://deltatkc.com/service-areas/ferrelview-mo
- Gladstone — https://deltatkc.com/service-areas/gladstone-mo
- Grain Valley — https://deltatkc.com/service-areas/grain-valley-mo
- Grandview — https://deltatkc.com/service-areas/grandview-mo
- Houston Lake — https://deltatkc.com/service-areas/houston-lake-mo
- Independence — https://deltatkc.com/service-areas/independence-mo
- Kansas City, MO — https://deltatkc.com/service-areas/kansas-city-mo
- Kearney — https://deltatkc.com/service-areas/kearney-mo
- Lake Waukomis — https://deltatkc.com/service-areas/lake-waukomis-mo
- Lee's Summit — https://deltatkc.com/service-areas/lee-s-summit-mo
- Liberty — https://deltatkc.com/service-areas/liberty-mo
- North Kansas City — https://deltatkc.com/service-areas/north-kansas-city-mo
- Oak Grove — https://deltatkc.com/service-areas/oak-grove-mo
- Parkville — https://deltatkc.com/service-areas/parkville-mo
- Peculiar — https://deltatkc.com/service-areas/peculiar-mo
- Platte City — https://deltatkc.com/service-areas/platte-city-mo
- Raymore — https://deltatkc.com/service-areas/raymore-mo
- Raytown — https://deltatkc.com/service-areas/raytown-mo
- Riverside — https://deltatkc.com/service-areas/riverside-mo
- Smithville — https://deltatkc.com/service-areas/smithville-mo
- Weatherby Lake — https://deltatkc.com/service-areas/weatherby-lake-mo

For per-city service pages, the slug pattern is:
  /service-areas/{city}-{state}/{service-variation-slug}
e.g. /service-areas/basehor-ks/heat-pump-repair-service.
The full enumeration (~662 pages) is in /sitemap.xml.

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## Legal, accessibility, and policy
- Privacy Policy: https://deltatkc.com/privacy
- Terms of Service: https://deltatkc.com/terms
- Accessibility Statement: https://deltatkc.com/accessibility — Delta T
  conforms to WCAG 2.2 AA. Contact stever@deltatkc.com for accessibility
  feedback.

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## Conversion entry points (intent: act)
- Schedule or request a quote: https://deltatkc.com/contact
- Free second opinion on a competitor quote:
  https://deltatkc.com/free-second-opinion
- Sign up for an annual maintenance plan:
  https://deltatkc.com/services/maintenance-plans
- Apply for financing (Service Finance Co.):
  https://deltatkc.com/financing
- Direct phone: tel:+19136871494

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## Machine indexes
- XML sitemap: https://deltatkc.com/sitemap.xml
- Curated AI index: https://deltatkc.com/llms.txt
- Expanded AI ingest content (this file): https://deltatkc.com/llms-full.txt
- Human-readable sitemap page: https://deltatkc.com/sitemap