Software-only HVAC analytics

Predictive Maintenance That Prevents Costly HVAC Failures

Wattnest reads the data a building already collects and lists every fault in plain language, weeks early, each with a dollar figure. Built for HVAC service companies. No hardware, no training period.

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Wattnest Live Monitor Live UNITS 24 OPEN FAULTS 3 AT STAKE $83/day SAVED YTD $20.2K P1 AHU-03 · Static pressure low 6 hrs Fan at 100%, pressure under target. Check VFD $45/day cost of waiting P2 Chiller-02 · Condenser approach rising +2.1°F over baseline for 3 wks. Schedule tube cleaning $32/day cost of waiting P3 VAV-2-14 · Damper stuck open Zone overcooled on mild days. Inspect actuator next visit $6/day cost of waiting 21 units healthy, no action needed updated 4 min ago
24 days
Earlier warning than existing monitoring
19/20
Confirmed faults caught on one campus building
24 days
Earlier warning than existing monitoring
<0.6%
False alarms, under 1 per unit per week
20 CONFIRMED FAULTS · ONE BUILDING Caught by the building's alarms 0/20 Caught by Wattnest, same data, software only 19/20 153 days how long the typical fault stayed invisible One university campus building · existing data only · 94.9% event precision

The Faults Buildings Hide

On one university campus building we analyzed, 20 real equipment faults were confirmed in a single season. The building's own alarms caught zero of them. The typical fault sat invisible for five months. Alarms are built for emergencies, not for slow decay.

  • LBNL research estimates roughly 40% of commercial air handlers run with at least one active fault
  • Undetected faults waste 15 to 30% of HVAC energy before anyone sees a symptom
  • Quarterly PM visits leave months-long blind gaps between inspections
  • Emergency repairs carry rush labor, expedited parts, and downtime that planned fixes avoid
Our Technology

The Technology Behind Early Detection

Three pillars that catch equipment problems early and keep the alert queue quiet enough to trust.

Findings From Week One

Nothing to install and no training period. Connect the data and the first findings arrive the same week, with false alarms held under one alert per unit per week.

Gets Sharper Over Time

Every building runs differently, so Wattnest learns each building's normal and improves with every week of data. Tested on 1,500+ real fault events from operating buildings.

Software Only

No hardware, no controllers, no downtime. Wattnest reads the data your building systems already record (Tridium, Niagara, SkySpark) through exports or read-only access.

Real Detection Results from Real Buildings

Wattnest is tested on real building data: 1,500+ labeled fault events from operating buildings, plus a season of data from one university campus building where 20 real faults were confirmed. The building's alarms caught none of them. Wattnest caught 19.

19/20
Confirmed faults detected
94.9%
Event precision, software only
24 days
Earlier than existing monitoring
CHILLER-02 EARLY WARNING TIMELINE Condenser approach temperature, 15-minute trend data critical · 8.5°F watch · 6.0°F WATTNEST FLAG Mar 4 INCUMBENT ALERT Mar 28 24 days to plan the fix +24 days median lead across flagged points in a 3-year university chiller-plant record

Tested on real operating buildings and expert-labeled fault records

Technical Specifications

Built for Enterprise HVAC Infrastructure

Data Sources

Building data systems (Tridium, Niagara, SkySpark), trend exports, REST API

Ingestion

15-minute or hourly trend data; a few months of history is enough to start

Deployment

Cloud-hosted, read-only access. No control writes, no site hardware

Models

Detection that works from week one and learns each building over time

Analytics

Plain-language evidence, degradation tracking, dollars-per-day fault pricing

Security

TLS 1.3, encrypted at rest, read-only access

Equipment Coverage

Comprehensive HVAC Fault Detection

Purpose-built detection for the equipment that matters most in commercial buildings. Tested on real buildings, not lab benchmarks.

Air Handling Units

Our strongest coverage: fans, circulation pumps, temperature sensors, dampers, and economizers. Tested on 1,500+ real fault events from operating air handlers.

Chiller Plants

Centrifugal, screw, and absorption chillers with their pumps and loops. On a three-year university chiller plant record, Wattnest surfaced problems a median of 24 days before the platform already watching them.

VAVs, Pumps & Plant Equipment

Coverage from day one for VAV boxes, hydronic loops, and plant equipment: stuck dampers, simultaneous heating and cooling, and flow problems. Coverage grows as your data accumulates.

For Service Companies

Built for HVAC Service Companies

Give your team a short, dollar-ranked fault list and give every customer a client-ready view under your brand. Serve the customers a truck-roll model can't reach profitably.

Your Company Fleet Dashboard White-label Live Downtown Office Tower 6 units monitored 74% health 1 fault · $45/day ● Dispatch recommended Regional Medical Center 12 units monitored 93% health all clear ● Savings YTD $14.6K Eastside Data Center 8 units monitored 89% health 1 watch item ● Monitor closely Dispatch Queue CH-03 condenser fouling Office Tower · flagged 12 days ago RTU-05 refrigerant low Data Center · next scheduled visit Your Brand Deploy under your company name and domain. Customers see you, powered by Wattnest underneath. Every Site, One View All customer buildings in one portfolio. The sites that need attention surface themselves. Prioritized Dispatch Work orders ranked by cost of waiting and equipment criticality, not by whoever calls loudest. Value Receipts Every repair quantified in dollars saved. Proof your customers see at renewal time.
Use Cases

Predictive Maintenance for Every Facility

CRAC 99.999% Uptime target 24/7 Monitoring Critical cooling

Data Centers

Continuous watch over critical cooling. Flag CRAC and chiller problems early, before they threaten uptime targets or tenant SLAs.

Fewer surprises Faults caught between visits Energy waste priced Dollars per day, per fault

Commercial Buildings

Catch problems between service visits, before they affect tenant comfort or trigger SLA penalties. And stop paying the energy cost of invisible faults.

SERVICE Add to your offering Predictive Maintenance as a subscription service Recurring revenue Monthly monitoring fees per unit per month

HVAC Service Providers

Add data-driven monitoring to your service offering. Reach the customers a truck-roll model can't serve profitably, and show every account the contract's value in dollars.

Send Us Three Months of Building Data

We'll send back every fault we find, each with a dollar figure. One building is enough to start.

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