Boiler Replacement Service for the U.S. Embassy Riga, Latvia

Questions & Answers / Clarifications

This document provides responses to vendor questions regarding the Solicitation for Boiler Replacement Services (19LG7526Q0001) in Riga, Latvia.

• Insurance: Local insurance is required; a DBA insurance waiver is not applicable.
• Timeline: Award is expected in approximately one month, with project commencement in June and completion within 60 days, contingent on security clearance.
• BAS System: The government does not require a specific brand. The Building Automation System (BAS) will control the boiler room and mechanical room sensors, providing setpoints and readings to the building BAS. It will operate independently.
• BAS Protocol: Modbus TCP protocol should be used.
• Electrical Standards: Wiring must adhere to U.S. standards, with conduits provided by the Embassy.
• Boiler Standards: EU standards are preferred, with an emphasis on boilers and spare parts being locally available and maintainable.
• Burner Type: A modular burner with electrical pilot flame ignition is required.
• Pumps: Primary and secondary pumps must be locally available, serviceable, and controlled by Variable Frequency Drive (VFD).
• Chimneys: Two chimney units are installed, each with an ID of 300 mm, extending 6 meters above the roof.
• Domestic Hot Water (DHW): DHW preparation is not included; only heating hot water is within the scope.
• Submittal Deadline: The deadline for all listed submittals is March 18, 2026, by 2 p.m. Riga time.

This Q&A document clarifies technical specifications, administrative requirements, and deadlines, providing essential details for bidders to refine their proposals. It confirms the scope is limited to heating hot water and specifies the required standards and equipment protocols. The document also outlines the submittal requirements and deadline.

Questions & Answers / Clarifications

This document provides responses to vendor questions regarding the Solicitation for Boiler Replacement Services in Riga, Latvia (19LG7526Q0001).

• Insurance: Local insurance is required; a DBA insurance waiver is available.
• Timeline: Award is expected in approximately one month, with project completion within 60 days of a June start.
• BAS System: No specific brand is required; it will control the boiler room and mechanical room sensors, operating independently.
• BAS Protocol: Modbus TCP protocol should be used.
• Boiler Standards: EU standards are required, with boilers and spare parts readily available and serviceable locally.
• Burner Type: A modular burner with electrical pilot flame ignition is required.
• Fuel Flexibility: Boilers must be dual-fuel capable (natural gas and light oil/diesel).
• Chimneys: Two chimney units are installed, each with an ID of 300 mm and extending 6 meters above the roof.
• Domestic Hot Water: This solicitation is only for heating hot water, not domestic hot water.
• Submittal Deadline: The deadline for listed submittals is COB on March 5, 2026.

These clarifications provide specific details on technical requirements, operational parameters, insurance, and submission deadlines, which bidders must consider when preparing their proposals.

Solicitation / RFP / RFQ

This solicitation is for a Boiler Replacement Project at the U.S. Embassy in Riga, Latvia, located at Samnera Velsa iela 1. The project involves removing and installing two hot-water, floor-standing steel boilers with reverse-flame combustion chambers. The building is designed to meet U.S. Department of State sustainability standards.

• Quantity: 2 boilers.

• Boiler Specifications:

  • Nominal thermal output: 630 kW per unit (vendor to state exact outputs).
  • Thermal efficiency: Guaranteed > 92% at nominal conditions.
  • Design: Floor-standing steel construction, reverse-flame configuration.
  • Fuel flexibility: Dual-fuel capable (natural gas and light oil/#2 diesel) with fuel switching capability.
  • Burner performance: Dual-fuel low-NOx burner integrated with boiler, meeting low-NOx class 3 (gas) and class 2 (oil).

• Mandatory Supplied Items: Complete boiler package, factory-fitted low-NOx burner (or equivalent), electronic cam burner sequencing controller, combustion controller with Modbus interface, output modulator, and automatic O2 trim system.

• Re-design Drawings: Mechanical room re-design drawings are required.

• Testing & Commissioning: Includes factory acceptance tests (FAT), site commissioning, and performance acceptance testing.

• Documentation: Manufacturer's datasheets, performance curves, wiring diagrams, manuals, test certificates, and spare parts list.

• Quality & Certifications: Equipment manufacturer must have ISO 9001 certification. Equipment must meet regional safety and pressure-vessel standards. Certified subcontractors/technicians are required for gas, plumbing, fuel, and electrical work.

• Warranty: Minimum 12 months parts and labor from commissioning (or 18 months from delivery if commissioning is delayed). Extended warranty options are encouraged.

• Contract Type: Firm-fixed-price.

• Period of Performance: Commence work within 7 calendar days after notice to proceed and complete within 60 calendar days after notice to proceed. This period is negotiable.

• Estimated Value: Between $100,000 and $250,000.

• Proposal Submission Deadline: March 18, 2026, at 14:00 local time.

• Offerors must submit:

  • Volume I: Executed Standard Form 1442, Solicitation, Offer and Award, and completed Section K.
  • Volume II: Price Proposal and completed Section B.
  • Volume III: Performance schedule (bar chart) and Business Management/Technical Proposal.

• Evaluation Criteria: Award will be made to the lowest priced, technically acceptable, responsible offeror.

• Site Visit: Scheduled for February 24, 2026, at 14:30. Prospective offerors must contact Riga Procurement section by E-mail by February 19, 2026, to arrange entry.

• Offerors must be technically qualified and financially responsible.

• Minimum 5 years of experience in boiler installation.

• Established business with a permanent address and telephone listing in Latvia or plans to establish an office within 30 days of award.

• Proof of SAM registration required.

• Must be able to understand written and spoken English.

• Performance and payment bonds are required (20% of contract price).

• Insurance requirements are detailed in Section H.2.1.

• The solicitation includes numerous FAR and DOSAR clauses incorporated by reference.

Solicitation / RFP / RFQ

This document is a Request for Proposals (RFP) for the replacement of boilers at the U.S. Embassy in Riga, Latvia. The U.S. Government intends to award a contract to a responsible company submitting an acceptable offer at the lowest price, based on initial quotations.

• The solicitation requires the replacement of boilers at the U.S. Embassy Riga.

• Offerors must complete required portions of the attached document, including SF-1442, Section B (Pricing), Section K (Representations and Certifications), and any additional information required in Section L.

• The contract type and period of performance are not explicitly stated in this invitation letter but will be detailed in the full solicitation document.

• Site Visit: February 24, 2026, 2:30 PM (local time) at U.S. Embassy Riga, Latvia.

• Information/Entry Arrangements: Contact Riga Procurement Section via email (Riga-ProcurementSection@state.gov) by COB February 19, 2026.

• Questions Deadline: E-mail questions to Christine Lyons (Riga-ProcurementSection@state.gov) by February 27, 2026, 10:00 AM (local time).

• Q&A Posting: Questions and Answers will be posted on the Embassy website (http://riga.usembassy.gov) under "Opportunities/Procurements" by COB March 5, 2026.

• Proposal Submission Deadline: March 18, 2026, 2:00 PM (local time).

• Submission Method: Electronically to Riga-ProcurementSection@state.gov.

• Format Requirements: MS-Word 2007/2010, MS-Excel 2007/2010, or Adobe Acrobat (pdf) file format. File size must not exceed 30MB per file/email. Submissions exceeding 30MB must be sent in separate files via separate emails.

• Evaluation: Award will be based on acceptable offer at the lowest price. Discussions may be held if needed.

• Offerors must be registered in the System for Award Management (SAM) database (https://www.sam.gov) prior to proposal submission. Failure to register may result in the offer being considered non-responsible.

• Quotations must be in English. Incomplete quotations will not be accepted.

• The solicitation number is 19LG7526R0001.