kWhound
kWhoundPrivate Beta

Smart Thermostat & Utility Tariff Auditor

100% Read-Only Smart Thermostat Auditor

Stop Wondering Why Your Electric Bill Is So High. Find The Hidden Waste In Your Heating & AC.

Most energy calculators just guess from regional averages and sell your phone number to contractors. kWhound connects directly to your smart thermostat and electric bill to show you where your money is going—flagging expensive backup heat spikes, runaway fan runtimes, and billing errors with zero sales calls.

Start Free Home Audit →See How We Compare
Strictly Read-Only (Never Touches Hardware)Heat Pump, Gas, Oil & Hydronic AwareZero Contractor Spam

Why Generic Online Estimators Get Your Home Wrong

Online calculators don't know if you installed a cold-climate heat pump, burn a wood stove on weekends, or accidentally left your furnace fan running 24/7.

Audit Capability⚡ kWhound.com🔍 Generic Online Estimators📋 In-Person Utility Audit
Primary Data Source✓ Real 5-Min Thermostat Data + BillsGeneric Estimates & Regional AveragesBlower Door + Visual Inspection
Fossil Blower vs. Hydronic Boiler Math✓ Separates ~500W Blowers vs ~100W Circulators✕ Generic Regional HVAC AssumptionManual Inspector Estimate
Heat Pump Aux-Strip Setback Trap✓ Detects Exact 10kW Aux Recovery Spikes✕ Cannot See Thermostat Staging✕ Does Not Analyze Runtime Logs
Wood Stove & Space Heater Detection✓ Flags Zero-Runtime Thermal Anomalies✕ Blind to Supplemental HeatingVisual Only (No Bill Reconciliation)
Hardware Safety Guarantee✓ 100% Read-Only (Never Touches Setpoints)N/A (No Hardware Connection)N/A
Business Model / Privacy✓ Direct Homeowner Tool (Zero Lead Spam)✕ Sells Leads to Up to 4 ContractorsUpsells Weatherization Contracts

Built for Real Heating Physics—Especially New England & Cold Climates

Most energy apps assume every home runs a standard electric air conditioner and heat pump. kWhound models your actual mechanical room.

01

Fossil Furnaces vs. Hydronic Boilers

In Massachusetts and across the Northeast, natural gas, heating oil, and propane dominate. kWhound never confuses a ~500W forced-air blower motor with a ~100W hydronic zone circulator pump or a 3.5 kW heat pump compressor when verifying your electric bill.

02

Cold-Climate Heat Pumps & Aux Strips

Deep 7°F night setbacks save money on gas/oil boilers—but on heat pumps with electric resistance backup, morning recovery triggers 10 kW+ Aux Strips. kWhound distinguishes ductless cold-climate units (no strips) from aux-backed systems and Dual-Fuel lockouts.

03

Wood Stoves, Inserts & Space Heaters

Burning a wood insert satisfies the living room thermostat while freezing upstairs bedrooms—or worse, two 1,500W plug-in space heaters silently add 720 kWh/mo ($230+) to your bill with zero thermostat runtime. kWhound catches both anomalies automatically.

04

BYOM: Bring Your Own Model API

Export your live home energy context directly into ChatGPT Custom GPTs, Claude Desktop, Cursor, or LangChain. Includes pre-configured OpenAPI 3.1 action schemas, personal API keys, and SKILL.md ingestion files ready for any AI lab agent.

Test kWhound’s Fuel-Aware Audit Logic Right Now

Select your home’s primary heating setup and supplemental heat source to see how kWhound diagnoses hidden kWh drain before you even connect your thermostat.

⚡ kWhound Physics Diagnostic
10 kW Aux-Strip Setback Trap
Est. Avoidable Waste: ~$134 / month

Deep 6°F–8°F setbacks on heat pumps with electric resistance strips trigger 10 kW+ morning recovery spikes. Switching to a moderate 1°F–2°F setback prevents stage-2 resistance strip drain.

Connect Thermostat (Read-Only) & Verify My Bill →
INSTANT ROI ESTIMATE

How much could kWhound save your home?

Most heat pump homes waste 18% to 28% of their winter electricity on premature auxiliary resistance strip activation.

$150/mo$500/mo$900/mo
Estimated Monthly Savings
$84/mo
Net ROI: 740% after $10/mo kWhound membership
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Frequently Asked Questions

Everything homeowners ask about smart thermostat energy auditing and read-only hardware safety.

How is kWhound different from generic energy calculators?

Most energy websites generate rough guesses from regional averages and home square footage to sell your phone number to local contractors. kWhound connects directly to your smart thermostat’s actual 5-minute heating and cooling runtime and cross-references your real electric bill (Supply + Delivery rates), fuel type, and supplemental heat—giving you exact dollar-and-cent answers with zero contractor spam.

Will kWhound ever change my thermostat temperature automatically?

Never. kWhound enforces strict Read-Only Safety. Our auditor has zero write permissions to dispatch temperature holds or schedule changes to your hardware. We show you the exact dollar impact and tell you which setting to adjust in your Ecobee app.

Why does kWhound ask whether I have a Forced-Air Furnace vs. a Hydronic Boiler?

When a natural gas, oil, or propane system calls for heat, the fuel provides the thermal BTUs, but your electric bill still pays for distribution. A forced-air furnace blower draws ~400W–600W, whereas a hydronic boiler zone circulator pump draws only ~60W–150W. Separating them prevents false electric bill diagnostics.

How do wood stoves or plug-in space heaters affect my thermostat audit?

A roaring wood stove raises indoor temperatures while your thermostat logs zero HVAC runtime ("ghost heat"). Conversely, two 1,500W bedroom space heaters keep your central thermostat off while adding over 700 kWh/month to your electric bill. kWhound’s home profile accounts for both so your audit reconciles cleanly with your utility statement.

How does the Bring Your Own Model (BYOM) feature work?

kWhound Pro includes an open REST API and pre-configured SKILL.md specification that makes all your home's 5-minute smart thermostat runtime data, utility bills, and daily audit findings ingestible by any AI model or agent (like ChatGPT Custom GPTs, Claude Desktop, Cursor, or LangChain) with zero data entry.