Enerfit

What Enerfit does

Enerfit, LLC. is a privately held specialty HVAC company based in Chattanooga, Tennessee, that designs and sells IoT-enabled retrofit solutions for single-zone rooftop commercial air conditioning units (RTUs) and split systems. The company is part of the AIR Control Concepts network of companies and operates across the U.S., Canada, and Mexico with an employee base of 11–50.

The core product is a hardware-and-software retrofit kit offered in two versions: Enerfit V1, which works with existing thermostats, and Enerfit V2, which provides full unit control and is intended for integration with a Building Management System (BMS). The retrofit adds fan modulation, compressor optimization, airside economizers, indoor coil face dampers, refrigeration monitoring, and onboard diagnostics, and is engineered in alignment with ASHRAE Guideline 36 and ASHRAE 90.1. Supporting the hardware is the Enerfit Monitoring Tool (EMT), a handheld service technician interface, and a cloud monitoring platform that provides 24/7 performance tracking and integrated Measurement & Verification. The company markets advanced Fault Detection & Diagnostics (FDD) and predictive maintenance analytics as core features, and cites outcomes including 50%+ reductions in cooling energy consumption and up to 15% reductions in relative humidity.

Enerfit makes money primarily through one-time hardware sales of the retrofit system and associated professional assessment services, supported by a multi-year contract cadence and a quote-based pricing model that requires each prospective customer to submit a Scout Sheet with unit details. Go-to-market is sales-led and consultative, combining enterprise field sales with inside sales via phone (423-629-4175) and email, and is supplemented by digital marketing on the company website, YouTube, LinkedIn, and downloadable brochures. Customers are commercial, industrial, and retail buildings with single-zone RTUs or split systems, typically 6 tons and larger, with three-phase evaporator fan motors or ECMs, and the company reports thousands of installations.

Name

Enerfit

Legal name

ENERFIT, LLC.

Website

https://enerfit.com

Company type

Private

Founded year

1981

Operating status

Operating

Headcount range

11–50 employees

Short description

Enerfit designs and sells IoT-enabled HVAC retrofit solutions for single-zone commercial rooftop units and split systems across North America, offering hardware kits, a handheld technician tool, and a cloud monitoring platform.

Ownership category

akta.pro rank

Product category

HVAC Retrofit Solutions

NAICS

Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use (334512), Plumbing, Heating, and Air-Conditioning Contractors (23822)

SIC

Auto Controls For Regulating Residential & Comml Environments (3822), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Smart HVAC Monitoring, Diagnostics & Predictive Maintenance (HSAOANAC)

akta.pro secondary industry

HVAC Air Filtration & Air Purifier Installation (HSAOAIAC)

Keywords

• HVAC retrofit solutions
• Commercial HVAC optimization
• IoT-enabled HVAC
• Rooftop unit efficiency
• Energy management systems

Headquarters

HQ city

Chattanooga

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Technology or R&D, Operations, Marketing or Sales

Revenue model

1. HVAC Retrofit Hardware: Custom-designed retrofit solutions for single-zone rooftop commercial air conditioning units. Hardware sale of the Enerfit retrofit system including all components for installation.
2. Professional Assessment Services: Custom assessment process involving Scout Sheet evaluation, unit photo analysis, and technical review to determine retrofit viability and solution design.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

Enerfit provides IoT-enabled HVAC retrofit solutions designed to upgrade the performance of single-zone rooftop commercial air conditioning units (RTUs) and split systems without requiring full equipment replacement. The offering combines proprietary retrofit hardware (available in V1 and V2 versions) with Fault Detection & Diagnostics, cloud-based monitoring, and a handheld technician tool to reduce cooling energy consumption by 50% or more. Each engagement is custom-designed through a Scout Sheet assessment process for commercial, industrial, and retail buildings.

Product overview

Enerfit is a single, unified retrofit solution for single-zone rooftop commercial air conditioning units (RTUs) and split systems, designed to cut annual cooling energy consumption by half or more. The product portfolio consists of two versions—Enerfit V1 (works with existing thermostats) and Enerfit V2 (provides full unit control with BMS integration)—supplemented by the Enerfit Monitoring Tool (EMT) handheld service interface and a Cloud Monitoring Platform for remote management. The solution combines hardware retrofit components with advanced software features including airside economizers, fault detection and diagnostics (FDD), and real-time analytics to deliver comprehensive HVAC optimization without requiring equipment replacement.

Differentiator

Problem solved

Functional benefit

Products and services

• Enerfit Retrofit Solution A comprehensive IoT-enabled HVAC retrofit solution for single-zone rooftop commercial air conditioning units (RTUs) and split systems that cuts annual cooling energy consumption by half or more without requiring full equipment replacement. Designed for commercial, industrial, and retail buildings.
• Enerfit V1 Entry-level retrofit version that works with existing thermostats and controls, providing energy savings and efficiency improvements for single-zone RTUs and split systems without requiring a full system redesign or BMS integration.
• Enerfit V2 Advanced retrofit version providing full unit control of the HVAC system, best suited for integration with a Building Management System (BMS) for comprehensive building automation.
• Enerfit Monitoring Tool (EMT) A handheld service technician interface with read/write capabilities that enables technicians to monitor system performance, make quick adjustments, and perform diagnostics on-site for retrofitted HVAC units.
• Cloud Monitoring Platform Cloud-connected platform providing 24/7 performance tracking, remote system tuning, and integrated Measurement & Verification for real-time ROI monitoring of retrofitted RTUs and split systems.

Quantifiable outcome

• 50%+ annual energy savings on cooling
• +3 more outcomes

Segments2 records

Ideal customer profiles1 record

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability5 records

Feature10 records

Partnerships

One partnership is on record.

• AIR Control ConceptscoreStrategic or Co-development PartnerENERFIT is part of the AIR Control Concepts network of companies. This parent company relationship provides strategic oversight and integration within a broader HVAC solutions ecosystem.

Scale indicators4 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Honeywell Building Technologies: Global incumbent in commercial building automation and HVAC controls. Comparable because Honeywell's BMS and Niagara-based control stack compete for the same energy-efficiency and fault-detection spend that Enerfit targets on legacy RTUs, though at vastly larger scale and across more building types.
• Johnson Controls: Major HVAC and building controls incumbent (Metasys, Facility Explorer). Comparable because Johnson Controls addresses the same commercial HVAC retrofit and optimization customer with packaged controls and services, though its portfolio also covers chillers, VAV, and full equipment replacement.
• Carrier Global: Global HVAC manufacturer and controls provider. Comparable because Carrier addresses the same commercial RTU and rooftop retrofit opportunity with its own equipment, service, and controls stack, typically as part of broader replacement programs.
• Trane Technologies: Major commercial HVAC OEM and controls provider (Trane/BMS). Comparable because Trane sells both replacement RTUs and controls/analytics for existing fleets, competing directly for the energy-saving retrofit dollar that Enerfit pursues.

Emerging players

• 75F: IoT HVAC controls and predictive analytics provider for light commercial buildings. Comparable because 75F targets similar small-to-mid commercial customers with wireless controls and cloud analytics to reduce HVAC energy use, often competing for the same facilities-management buyer.
• BrainBox AI: AI-driven HVAC optimization startup targeting commercial buildings. Comparable because BrainBox AI competes for the same autonomous, cloud-connected energy-savings narrative on commercial HVAC systems, though it layers AI on top of existing BMS rather than selling a hardware retrofit kit.

Direct peers

• AIR Control Concepts: Parent company and broader HVAC controls platform within the same network as Enerfit. Comparable because it shares customer base, building automation expertise, and integration ecosystem, but operates as a wider portfolio player spanning controls beyond the RTU retrofit niche.
• Distech Controls: Specialist in commercial building automation and HVAC controls, now part of Acuity Brands. Comparable because Distech sells programmable controllers, sensors, and analytics for similar commercial HVAC optimization use cases, often via system integrators.
• KMC Controls: Independent building automation and HVAC controls manufacturer. Comparable because KMC sells configurable controllers, sensors, and analytics for commercial HVAC systems, often delivered through system integrators serving the same mid-market building owner as Enerfit.
• GridPoint: Energy management and HVAC/submeter analytics platform for commercial and multi-site portfolios. Comparable because GridPoint combines submetered data, fault detection, and optimization across HVAC equipment portfolios, directly overlapping Enerfit's RTU-focused analytics value proposition.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/@EnerfitLLC
• LinkedInlinkedin.com/company/enerfithvac

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Enerfit