Varem

What Varem does

Varem S.p.a. is an Italian privately-held manufacturer of water management components, founded in 1973 in the Padua province of Italy and operating two production facilities in Bovolenta and Limena. The company produces membrane expansion vessels, pressure tanks (autoclavi), and plate heat exchangers used in heating systems, solar thermal installations, domestic hot water systems, water distribution networks, and industrial thermal management. Its product portfolio is organized into 13+ branded sub-lines (including EXTRAVAREM, MAXIVAREM, SOLARVAREM, AQUAVAREM, ELECTROVAREM, FLOVAREM, INOXVAREM, PLATEVAREM, and BRAZEDVAREM) with CE certification across the range, supported by in-house R&D including a proprietary heat exchanger sizing software (Varemsca) and patented manufacturing innovations such as a one-piece crimped flange introduced in 2013.

Varem's go-to-market is a sales-led, two-tier distribution model: a direct sales agent network in Italy and international distributors reaching over 100 countries across 5 continents. The company participates in major HVAC and water industry trade shows (MCE, ISH, SHK, The Big 5, Aquatech) and serves three primary customer segments (heating and HVAC contractors, water system installers, and industrial plants) plus a secondary segment of renewable energy installers. Pricing is quote-based with multi-year contracts; no standard pricing is publicly disclosed. All products are marketed as 100% Made in Italy.

The company is family-controlled with no disclosed external equity investors, no subsidiaries, and no M&A activity. The only funding event recorded is a €7,500 regional innovation grant from POR FESR 2014-2020 in 2018. Varem has invested in operational efficiency (heat recovery from compressed air at 96% efficiency, inverter forming systems, lean production) and quality (defect rate reduced from 0.32% in 2008 to 0.20% by 2012), but no revenue figures, headcount growth, or recent post-2018 strategic milestones are publicly disclosed. The company celebrated its 50th anniversary in 2023.

Name

Varem

Legal name

Varem S.p.a.

Website

https://varem.com

Company type

Private

Founded year

1973

Operating status

Operating

Headcount range

51–100 employees

Short description

Varem is a 50-year-old Italian manufacturer of membrane expansion vessels, pressure tanks, and plate heat exchangers for heating, water distribution, and industrial applications, distributing to over 100 countries via a two-tier agent and distributor network.

Ownership category

akta.pro rank

Product category

Pressure Vessels and Heat Exchangers

NAICS

Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (3334), Plumbing and Heating Equipment and Supplies (Hydronics) Merchant Wholesalers (42372)

SIC

Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Heat Exchangers, Coils & Hydronic HVAC Components (IMADANAF)

akta.pro secondary industries

Heat Transfer Equipment (Heat Exchangers, Boilers, Condensers) (IMAHAEAC), HVAC, Water Heaters & Indoor Air Quality Distribution (CRAOAFAJ)

Keywords

• Expansion vessels
• Pressure tanks
• Heat exchangers
• Membrane technology
• Water management

Headquarters

HQ city

Limena

HQ country

Italy

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Expansion vessels sales: Sale of membrane expansion vessels for heating, solar, and multifunction applications
2. Pressure tanks (autoclavi) sales: Sale of membrane pressure tanks for water distribution including vertical, horizontal, and high-pressure variants
3. Heat exchangers sales: Sale of plate heat exchangers and brazed heat exchangers for thermal exchange applications
4. Spare parts and accessories: Sale of replacement parts and accessories for expansion vessels and heat exchangers

Pricing tiers

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Varem designs, manufactures, and sells membrane expansion vessels for heating, solar thermal, and multifunction hot water systems, pressure tanks (autoclavi a membrana) for water distribution and pumping, and plate/brazed heat exchangers for thermal management. Products are sold under sub-brands including EXTRAVAREM, STARVAREM, MAXIVAREM, SOLARVAREM, AQUAVAREM, INTERVAREM, IDROVAREM, INOXVAREM, ZINCVAREM, FLOVAREM, ELECTROVAREM, PLATEVAREM, and BRAZEDVAREM, together with proprietary sizing software and replacement parts, all 100% manufactured in Italy.

Product overview

Varem is a manufacturer of water management solutions for heating, plumbing, and industrial applications. The product portfolio comprises three core product lines organized by application: (1) Linea Riscaldamento (Heating Line) — expansion vessels for heating systems (EXTRAVAREM LR CE, STARVAREM, MAXIVAREM LR CE), solar thermal systems (SOLARVAREM CE, SOLARVAREM CE FOR OIL, SOLAR PRE-TANK), and boilers (FLATVAREM, EXTRAVAREM LR); (2) Linea Termosanitario Multifunzione — multifunction expansion vessels combining hot sanitary water and heating functions (EXTRAVAREM LC, EXTRAVAREM LC CE, MAXIVAREM LC CE); (3) Linea Sollevamento Acqua (Water Lifting Line) — membrane pressure tanks (autoclavi) under the AQUAVAREM sub-brand, vertical and horizontal models (INTERVAREM LS CE, IDROVAREM CE, MAXIVAREM LS CE, INTERVAREM, PLUSVAREM), stainless steel and galvanized variants (INOXVAREM LS CE, ZINCVAREM LS CE), electronic pump controllers with integrated tanks (ELECTROVAREM), and flow-through tanks (FLOVAREM); (4) Heat Exchangers — plate heat exchangers (PLATEVAREM MEDIUM K2, LARGE K3, EXTRALARGE K4) and brazed plate heat exchangers (BRAZEDVAREM KA, KB, KC); (5) Spare Parts and Accessories — replacement parts and accessories for all product lines. Varem also offers a proprietary plate heat exchanger sizing software programme (Varemsca). All products are 100% made in Italy, and the company distributes to over 100 countries worldwide.

Differentiator

Problem solved

Functional benefit

Brands

• AQUAVAREM: Product line for pressure expansion vessels/autoclaves for water distribution systems
• ELECTROVAREM
• FLOVAREM
• INOXVAREM
• ZINCVAREM
• EXTRAVAREM
• MAXIVAREM
• STARVAREM
• SOLARVAREM
• PLATEVAREM
• BRAZEDVAREM
• INTERVAREM
• IDROVAREM

Products and services

• Heating expansion vessels (EXTRAVAREM LR CE, STARVAREM, MAXIVAREM LR CE) Membrane expansion vessels designed for heating systems in residential, commercial, and light industrial buildings, available in CE-certified standard and large-capacity configurations.
• Solar thermal expansion vessels (SOLARVAREM CE, SOLARVAREM CE FOR OIL, SOLAR PRE-TANK) Membrane expansion vessels engineered for solar thermal installations, with dedicated variants for oil heat-transfer fluid systems and pre-tank configurations to protect collectors and piping from pressure variations.
• Boiler expansion vessels (FLATVAREM, EXTRAVAREM LR) Flat and oval profile expansion vessels sized to fit inside wall-mounted and floor-standing boiler cabinets while providing required expansion volume.
• Multifunction expansion vessels (EXTRAVAREM LC, EXTRAVAREM LC CE, MAXIVAREM LC CE) Membrane expansion vessels designed to handle both domestic hot water and closed-loop heating circuits in combined sanitary/heating installations.
• AQUAVAREM membrane pressure vessels for water distribution Membrane pressure vessels (autoclavi a membrana) for water distribution and pumping systems in residential, commercial, and industrial buildings.
• Vertical membrane pressure vessels (INTERVAREM LS CE, IDROVAREM CE, MAXIVAREM LS CE) Vertical membrane pressure vessels for water lifting and boosting systems, available in standard and large-capacity CE-certified variants.
• Horizontal high-pressure membrane vessels (INTERVAREM, PLUSVAREM) Horizontal and high-pressure membrane expansion vessels designed for water distribution installations where space or pressure requirements dictate horizontal orientation.
• Stainless steel and galvanized membrane vessels (INOXVAREM LS CE, ZINCVAREM LS CE) Stainless steel and galvanized membrane expansion vessels for water distribution, available in multiple capacities including 1L, 2L, and 8L stainless steel configurations.
• ELECTROVAREM electronic pump controller with integrated pressure tank Electronic pump controller with built-in 3-litre pressure tank, providing integrated pump start/stop control and pressure management for residential water systems.
• FLOVAREM flow-through expansion vessel Flow-through expansion vessel with integrated pressure switch that limits sediment accumulation and related drawbacks in continuous-flow water distribution applications.
• PLATEVAREM plate heat exchangers (Medium K2, Large K3, ExtraLarge K4) Plate heat exchangers for thermal exchange between liquids, offered in three size classes (Medium K2, Large K3, ExtraLarge K4) to suit different capacity requirements.
• BRAZEDVAREM brazed plate heat exchangers (KA, KB, KC) Brazed plate heat exchangers for compact thermal exchange between liquids in heating, cooling, and industrial process applications, available in three configurations (KA, KB, KC).
• Spare parts for expansion vessels Replacement parts and components for Varem membrane expansion vessels, supporting after-sales service and maintenance of the installed base.
• Accessories for expansion vessels Accessories supporting installation and operation of Varem expansion vessels.
• Spare parts for heat exchangers Replacement parts and components for Varem plate and brazed heat exchangers, supporting after-sales service and maintenance.

Quantifiable outcome

• 14% reduction in natural gas consumption through heat recovery systems
• +4 more outcomes

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature11 records

Scale indicators9 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Caleffi: Italian specialist in components for heating, plumbing, air-conditioning, and renewable thermal systems; broader hydronic catalogue. Comparable Made-in-Italy manufacturing heritage and Italian distributor sales model targeting the same HVAC installer and water-system customer base as Varem.
• Zilmet: Italian manufacturer of membrane expansion vessels, pressure tanks, and plate heat exchangers for heating, plumbing, and solar applications. Closest direct competitor to Varem, sharing product range, Italian manufacturing heritage, and global distribution through distributors.
• Reflex Winkelmann: German manufacturer of expansion vessels, pressure maintenance, degassing, and plate heat exchanger solutions for heating and cooling systems. Directly comparable product portfolio and customer base to Varem's hydronic and plate heat exchanger lines.
• Flamco (Aalberts): Dutch-headquartered manufacturer of expansion vessels, air separators, and pressurisation equipment for HVAC and plumbing systems. Competes head-to-head with Varem in European hydronic component markets and operates a similar two-tier distributor model.
• IBO (Dambat): Polish-headquartered manufacturer of water pumps, autoclaves, and pressure tanks serving residential water distribution and heating systems in European and emerging markets. Overlaps with Varem on the pressure tank and water lifting product categories.
• CIMM Group: Italian manufacturer of expansion vessels and pressure tanks serving heating, water distribution, and industrial applications. Comparable size, geography, and product focus to Varem with overlapping customer segments in Italian and European HVAC contracting.
• Aquasystem (Elbi): Italian producer of membrane pressure tanks and expansion vessels for domestic and industrial water systems. Directly comparable product portfolio to Varem's AQUAVAREM and INTERVAREM lines, addressing the same installer customer base.

Broad incumbents

• Grundfos: Global Danish manufacturer of water pumps and systems for HVAC, building services, and industrial applications. While pumps are not Varem's core product (only ELECTROVAREM is pump-adjacent), Grundfos is an important reference customer and competitor in integrated water system solutions.
• Xylem: US-listed global water technology company offering pumps, treatment, and measurement solutions. Adjacent to Varem through the water-distribution ecosystem and a likely pressure-tank procurement counterpart for large utility and industrial customers.
• Watts Water Technologies: Large US-listed manufacturer of plumbing, heating, and water-treatment products serving commercial, residential, and industrial markets. Varem competes with subsets of the Watts hydronic and pressure-management portfolio but is dwarfed in scale, geographic breadth, and capital base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/Varem

Revenue estimate

Valuation estimate

Number of profiles

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 Varem